22123515025 has 12 divisors (see below), whose sum is σ = 28318100224. Its totient is φ = 17127882000.

The previous prime is 22123515023. The next prime is 22123515067. The reversal of 22123515025 is 52051532122.

It is not a de Polignac number, because 22123515025 - 2¹ = 22123515023 is a prime.

It is a super-2 number, since 2×22123515025² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22123514984 and 22123515002.

It is not an unprimeable number, because it can be changed into a prime (22123515023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14272461 + ... + 14274010.

Almost surely, 2^22123515025 is an apocalyptic number.

22123515025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22123515025 is a deficient number, since it is larger than the sum of its proper divisors (6194585199).

22123515025 is a wasteful number, since it uses less digits than its factorization.

22123515025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28546512 (or 28546507 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 22123515025 in words is "twenty-two billion, one hundred twenty-three million, five hundred fifteen thousand, twenty-five".