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22111211120 = 245979128229
BaseRepresentation
bin10100100101111011…
…100100111001110000
32010001222010220110012
4110211323210321300
5330240432223440
614054023554052
71411636123235
oct244573447160
963058126405
1022111211120
1194172251a9
124350bbb928
132114bbc69b
1410da84d78c
15896299e65
hex525ee4e70

22111211120 has 40 divisors (see below), whose sum is σ = 51415637760. Its totient is φ = 8843267840.

The previous prime is 22111210999. The next prime is 22111211149. The reversal of 22111211120 is 2111211122.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 22111211095 and 22111211104.

It is a congruent number.

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, 769166 + ... + 797394.

It is an arithmetic number, because the mean of its divisors is an integer number (1285390944).

Almost surely, 222111211120 is an apocalyptic number.

22111211120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22111211120 is an abundant number, since it is smaller than the sum of its proper divisors (29304426640).

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

22111211120 is a wasteful number, since it uses less digits than its factorization.

22111211120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38033 (or 38027 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22111211120 its reverse (2111211122), we get a palindrome (24222422242).

It can be divided in two parts, 221112 and 11120, that added together give a palindrome (232232).

The spelling of 22111211120 in words is "twenty-two billion, one hundred eleven million, two hundred eleven thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 9791 19582 28229 39164 48955 56458 78328 97910 112916 141145 156656 195820 225832 282290 391640 451664 564580 783280 1129160 2258320 276390139 552780278 1105560556 1381950695 2211121112 2763901390 4422242224 5527802780 11055605560 22111211120