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22002211020 = 22351793376079
BaseRepresentation
bin10100011111011011…
…110001100011001100
32002210101001010102110
4110133123301203030
5330030031223040
614035131424020
71406143464546
oct243733614314
962711033373
1022002211020
119370746879
1243205b5010
1320c844749a
1410ca198696
1588b918980
hex51f6f18cc

22002211020 has 96 divisors (see below), whose sum is σ = 62144409600. Its totient is φ = 5816208384.

The previous prime is 22002211009. The next prime is 22002211027. The reversal of 22002211020 is 2011220022.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 22002210987 and 22002211005.

It is not an unprimeable number, because it can be changed into a prime (22002211027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3616341 + ... + 3622419.

It is an arithmetic number, because the mean of its divisors is an integer number (647337600).

Almost surely, 222002211020 is an apocalyptic number.

22002211020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22002211020 is an abundant number, since it is smaller than the sum of its proper divisors (40142198580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22002211020 is a wasteful number, since it uses less digits than its factorization.

22002211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6607 (or 6605 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22002211020 its reverse (2011220022), we get a palindrome (24013431042).

The spelling of 22002211020 in words is "twenty-two billion, two million, two hundred eleven thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 179 337 358 537 674 716 895 1011 1074 1348 1685 1790 2022 2148 2685 3370 3580 4044 5055 5370 6079 6740 10110 10740 12158 18237 20220 24316 30395 36474 60323 60790 72948 91185 120646 121580 180969 182370 241292 301615 361938 364740 603230 723876 904845 1088141 1206460 1809690 2048623 2176282 3264423 3619380 4097246 4352564 5440705 6145869 6528846 8194492 10243115 10881410 12291738 13057692 16322115 20486230 21762820 24583476 30729345 32644230 40972460 61458690 65288460 122917380 366703517 733407034 1100110551 1466814068 1833517585 2200221102 3667035170 4400442204 5500552755 7334070340 11001105510 22002211020