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22103131110220 = 2251553711626887
BaseRepresentation
bin1010000011010010010010…
…10001110011101101001100
32220021001001012200120121201
411001221021101303231030
510344114203031011340
6115002012132435244
74440620123344456
oct501511121635514
986231035616551
1022103131110220
117051981314416
12258b899a78b24
13c44415c55c84
14565b239432d6
15284e46dde79a
hex141a49473b4c

22103131110220 has 24 divisors (see below), whose sum is σ = 46446463725984. Its totient is φ = 8835559416576.

The previous prime is 22103131110139. The next prime is 22103131110251. The reversal of 22103131110220 is 2201113130122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355782384 + ... + 355844503.

It is an arithmetic number, because the mean of its divisors is an integer number (1935269321916).

Almost surely, 222103131110220 is an apocalyptic number.

22103131110220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22103131110220 is an abundant number, since it is smaller than the sum of its proper divisors (24343332615764).

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

22103131110220 is a wasteful number, since it uses less digits than its factorization.

22103131110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711628449 (or 711628447 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 22103131110220 its reverse (2201113130122), we get a palindrome (24304244240342).

The spelling of 22103131110220 in words is "twenty-two trillion, one hundred three billion, one hundred thirty-one million, one hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 1553 3106 6212 7765 15530 31060 711626887 1423253774 2846507548 3558134435 7116268870 14232537740 1105156555511 2210313111022 4420626222044 5525782777555 11051565555110 22103131110220