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22002210220 = 2251773886471
BaseRepresentation
bin10100011111011011…
…110001010110101100
32002210101001002022211
4110133123301112230
5330030031211340
614035131420204
71406143462324
oct243733612654
962711032284
1022002210220
119370746211
1243205b4664
1320c8447003
1410ca198284
1588b9185ea
hex51f6f15ac

22002210220 has 48 divisors (see below), whose sum is σ = 49592789568. Its totient is φ = 8169707520.

The previous prime is 22002210211. The next prime is 22002210221. The reversal of 22002210220 is 2201220022.

It is a self number, because there is not a number n which added to its sum of digits gives 22002210220.

It is not an unprimeable number, because it can be changed into a prime (22002210221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 418416 + ... + 468055.

It is an arithmetic number, because the mean of its divisors is an integer number (1033183116).

Almost surely, 222002210220 is an apocalyptic number.

22002210220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22002210220 is an abundant number, since it is smaller than the sum of its proper divisors (27590579348).

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

22002210220 is a wasteful number, since it uses less digits than its factorization.

22002210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886570 (or 886568 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 22002210220 its reverse (2201220022), we get a palindrome (24203430242).

The spelling of 22002210220 in words is "twenty-two billion, two million, two hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 73 85 146 170 292 340 365 730 1241 1460 2482 4964 6205 12410 24820 886471 1772942 3545884 4432355 8864710 15070007 17729420 30140014 60280028 64712383 75350035 129424766 150700070 258849532 301400140 323561915 647123830 1100110511 1294247660 2200221022 4400442044 5500552555 11001105110 22002210220