22134250072 has 16 divisors (see below), whose sum is σ = 45274602600. Its totient is φ = 10061022720.

The previous prime is 22134250057. The next prime is 22134250081. The reversal of 22134250072 is 27005243122.

It is a self number, because there is not a number n which added to its sum of digits gives 22134250072.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125762697 + ... + 125762872.

Almost surely, 2^22134250072 is an apocalyptic number.

22134250072 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22134250072 is an abundant number, since it is smaller than the sum of its proper divisors (23140352528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22134250072 is a wasteful number, since it uses less digits than its factorization.

22134250072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251525586 (or 251525582 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

Adding to 22134250072 its reverse (27005243122), we get a palindrome (49139493194).

The spelling of 22134250072 in words is "twenty-two billion, one hundred thirty-four million, two hundred fifty thousand, seventy-two".