22111212000012 has 24 divisors (see below), whose sum is σ = 51603578880000. Its totient is φ = 7368868160016.

The previous prime is 22111211999959. The next prime is 22111212000049. The reversal of 22111212000012 is 21000021211122.

It is a super-2 number, since 2×22111212000012² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22111211999955 and 22111212000000.

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, 191920012 + ... + 192035187.

It is an arithmetic number, because the mean of its divisors is an integer number (2150149120000).

Almost surely, 2^{22111212000012} is an apocalyptic number.

It is an amenable number.

22111212000012 is an abundant number, since it is smaller than the sum of its proper divisors (29492366879988).

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

22111212000012 is a wasteful number, since it uses less digits than its factorization.

22111212000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383960005 (or 383960003 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22111212000012 its reverse (21000021211122), we get a palindrome (43111233211134).

The spelling of 22111212000012 in words is "twenty-two trillion, one hundred eleven billion, two hundred twelve million, twelve", and thus it is an aban number.