22011342125 has 32 divisors (see below), whose sum is σ = 28823558400. Its totient is φ = 16750008000.

The previous prime is 22011342077. The next prime is 22011342169. The reversal of 22011342125 is 52124311022.

It is not a de Polignac number, because 22011342125 - 2²² = 22007147821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 22011342125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 499226 + ... + 541524.

It is an arithmetic number, because the mean of its divisors is an integer number (900736200).

Almost surely, 2^22011342125 is an apocalyptic number.

22011342125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22011342125 is a deficient number, since it is larger than the sum of its proper divisors (6812216275).

22011342125 is a wasteful number, since it uses less digits than its factorization.

22011342125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42518 (or 42508 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 22011342125 its reverse (52124311022), we get a palindrome (74135653147).

The spelling of 22011342125 in words is "twenty-two billion, eleven million, three hundred forty-two thousand, one hundred twenty-five".