22111051 has 2 divisors, whose sum is σ = 22111052. Its totient is φ = 22111050.

The previous prime is 22111039. The next prime is 22111069. The reversal of 22111051 is 15011122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22111051 - 2¹⁵ = 22078283 is a prime.

It is not a weakly prime, because it can be changed into another prime (22111151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11055525 + 11055526.

It is an arithmetic number, because the mean of its divisors is an integer number (11055526).

Almost surely, 2^22111051 is an apocalyptic number.

22111051 is a deficient number, since it is larger than the sum of its proper divisors (1).

22111051 is an equidigital number, since it uses as much as digits as its factorization.

22111051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 22111051 is about 4702.2389348054. The cubic root of 22111051 is about 280.6746105844.

Adding to 22111051 its reverse (15011122), we get a palindrome (37122173).

The spelling of 22111051 in words is "twenty-two million, one hundred eleven thousand, fifty-one".