22152530511 has 28 divisors (see below), whose sum is σ = 33456187872. Its totient is φ = 14660489376.

The previous prime is 22152530507. The next prime is 22152530513. The reversal of 22152530511 is 11503525122.

It is not a de Polignac number, because 22152530511 - 2² = 22152530507 is a prime.

It is a super-2 number, since 2×22152530511² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22152530513) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 11031 + ... + 210776.

Almost surely, 2^22152530511 is an apocalyptic number.

22152530511 is a deficient number, since it is larger than the sum of its proper divisors (11303657361).

22152530511 is an equidigital number, since it uses as much as digits as its factorization.

22152530511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221962 (or 221947 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The spelling of 22152530511 in words is "twenty-two billion, one hundred fifty-two million, five hundred thirty thousand, five hundred eleven".