22111112103212 has 48 divisors (see below), whose sum is σ = 42632941153824. Its totient is φ = 9950324160000.

The previous prime is 22111112103139. The next prime is 22111112103233. The reversal of 22111112103212 is 21230121111122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68904128 + ... + 69224280.

It is an arithmetic number, because the mean of its divisors is an integer number (888186274038).

Almost surely, 2^{22111112103212} is an apocalyptic number.

22111112103212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22111112103212 is a deficient number, since it is larger than the sum of its proper divisors (20521829050612).

22111112103212 is a wasteful number, since it uses less digits than its factorization.

22111112103212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335810 (or 335808 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 22111112103212 its reverse (21230121111122), we get a palindrome (43341233214334).

The spelling of 22111112103212 in words is "twenty-two trillion, one hundred eleven billion, one hundred twelve million, one hundred three thousand, two hundred twelve".