22101121312 has 24 divisors (see below), whose sum is σ = 43602451200. Its totient is φ = 11027482944.

The previous prime is 22101121213. The next prime is 22101121321. The reversal of 22101121312 is 21312110122.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 705612 + ... + 736267.

It is an arithmetic number, because the mean of its divisors is an integer number (1816768800).

Almost surely, 2^22101121312 is an apocalyptic number.

It is an amenable number.

22101121312 is a deficient number, since it is larger than the sum of its proper divisors (21501329888).

22101121312 is a wasteful number, since it uses less digits than its factorization.

22101121312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442368 (or 1442360 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 22101121312 its reverse (21312110122), we get a palindrome (43413231434).

The spelling of 22101121312 in words is "twenty-two billion, one hundred one million, one hundred twenty-one thousand, three hundred twelve".