22131111100312 has 8 divisors (see below), whose sum is σ = 41495833313100. Its totient is φ = 11065555550152.

The previous prime is 22131111100309. The next prime is 22131111100381. The reversal of 22131111100312 is 21300111113122.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 22131111100312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1383194443762 + ... + 1383194443777.

Almost surely, 2^{22131111100312} is an apocalyptic number.

It is an amenable number.

22131111100312 is a deficient number, since it is larger than the sum of its proper divisors (19364722212788).

22131111100312 is a wasteful number, since it uses less digits than its factorization.

22131111100312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2766388887545 (or 2766388887541 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 22131111100312 its reverse (21300111113122), we get a palindrome (43431222213434).

The spelling of 22131111100312 in words is "twenty-two trillion, one hundred thirty-one billion, one hundred eleven million, one hundred thousand, three hundred twelve".