22111055451 has 24 divisors (see below), whose sum is σ = 33824244480. Its totient is φ = 13889349936.

The previous prime is 22111055431. The next prime is 22111055467. The reversal of 22111055451 is 15455011122.

It is a happy number.

22111055451 is a `hidden beast` number, since 2 + 2 + 1 + 110 + 5 + 545 + 1 = 666.

It is not a de Polignac number, because 22111055451 - 2²⁷ = 21976837723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22111055411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 783271 + ... + 811008.

It is an arithmetic number, because the mean of its divisors is an integer number (1409343520).

Almost surely, 2^22111055451 is an apocalyptic number.

22111055451 is a deficient number, since it is larger than the sum of its proper divisors (11713189029).

22111055451 is a wasteful number, since it uses less digits than its factorization.

22111055451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594375 (or 1594372 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

Adding to 22111055451 its reverse (15455011122), we get a palindrome (37566066573).

The spelling of 22111055451 in words is "twenty-two billion, one hundred eleven million, fifty-five thousand, four hundred fifty-one".