22121111150672 has 80 divisors (see below), whose sum is σ = 44227294605312. Its totient is φ = 10712662542720.

The previous prime is 22121111150657. The next prime is 22121111150683. The reversal of 22121111150672 is 27605111112122.

It is a congruent number.

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, 111980147 + ... + 112177517.

Almost surely, 2^{22121111150672} is an apocalyptic number.

It is an amenable number.

22121111150672 is a deficient number, since it is larger than the sum of its proper divisors (22106183454640).

22121111150672 is a wasteful number, since it uses less digits than its factorization.

22121111150672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198976 (or 198970 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 32.

Adding to 22121111150672 its reverse (27605111112122), we get a palindrome (49726222262794).

The spelling of 22121111150672 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred eleven million, one hundred fifty thousand, six hundred seventy-two".