22025129 has 16 divisors (see below), whose sum is σ = 25740288. Its totient is φ = 18457872.

The previous prime is 22025119. The next prime is 22025137. The reversal of 22025129 is 92152022.

It is a de Polignac number, because none of the positive numbers 2^k-22025129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22025119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96914 + ... + 97140.

It is an arithmetic number, because the mean of its divisors is an integer number (1608768).

Almost surely, 2^22025129 is an apocalyptic number.

It is an amenable number.

22025129 is a deficient number, since it is larger than the sum of its proper divisors (3715159).

22025129 is a wasteful number, since it uses less digits than its factorization.

22025129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 22025129 is about 4693.0937557223. The cubic root of 22025129 is about 280.3105779963.

The spelling of 22025129 in words is "twenty-two million, twenty-five thousand, one hundred twenty-nine".