21223110312292 has 96 divisors (see below), whose sum is σ = 43143597471744. Its totient is φ = 8946793228800.

The previous prime is 21223110312223. The next prime is 21223110312301. The reversal of 21223110312292 is 29221301132212.

It is a super-2 number, since 2×21223110312292² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2276420343 + ... + 2276429665.

It is an arithmetic number, because the mean of its divisors is an integer number (449412473664).

Almost surely, 2^{21223110312292} is an apocalyptic number.

It is an amenable number.

21223110312292 is an abundant number, since it is smaller than the sum of its proper divisors (21920487159452).

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

21223110312292 is a wasteful number, since it uses less digits than its factorization.

21223110312292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11929 (or 11927 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 21223110312292 in words is "twenty-one trillion, two hundred twenty-three billion, one hundred ten million, three hundred twelve thousand, two hundred ninety-two".