22252135392 has 144 divisors (see below), whose sum is σ = 63767431728. Its totient is φ = 7360450560.

The previous prime is 22252135387. The next prime is 22252135441. The reversal of 22252135392 is 29353125222.

22252135392 is a `hidden beast` number, since 2 + 2 + 252 + 13 + 5 + 392 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36300078 + ... + 36300690.

It is an arithmetic number, because the mean of its divisors is an integer number (442829387).

Almost surely, 2^22252135392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22252135392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31883715864).

22252135392 is an abundant number, since it is smaller than the sum of its proper divisors (41515296336).

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

22252135392 is a wasteful number, since it uses less digits than its factorization.

22252135392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393 (or 1382 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The spelling of 22252135392 in words is "twenty-two billion, two hundred fifty-two million, one hundred thirty-five thousand, three hundred ninety-two".