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22013020220 = 2253732950807
BaseRepresentation
bin10100100000000101…
…000000100000111100
32002211010101021212012
4110200011000200330
5330040313121340
614040155230352
71406334404342
oct244005004074
962733337765
1022013020220
1193768599a4
1243241483b8
1320ca760469
1410cb7ad992
1588c851565
hex52014083c

22013020220 has 24 divisors (see below), whose sum is σ = 46351292064. Its totient is φ = 8781598656.

The previous prime is 22013020219. The next prime is 22013020223. The reversal of 22013020220 is 2202031022.

It is a super-2 number, since 2×220130202202 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22013020195 and 22013020204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22013020223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1467944 + ... + 1482863.

It is an arithmetic number, because the mean of its divisors is an integer number (1931303836).

Almost surely, 222013020220 is an apocalyptic number.

22013020220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22013020220 is an abundant number, since it is smaller than the sum of its proper divisors (24338271844).

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

22013020220 is a wasteful number, since it uses less digits than its factorization.

22013020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2951189 (or 2951187 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 22013020220 its reverse (2202031022), we get a palindrome (24215051242).

The spelling of 22013020220 in words is "twenty-two billion, thirteen million, twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 373 746 1492 1865 3730 7460 2950807 5901614 11803228 14754035 29508070 59016140 1100651011 2201302022 4402604044 5503255055 11006510110 22013020220