22533212502 has 64 divisors (see below), whose sum is σ = 50765568000. Its totient is φ = 7407526464.

The previous prime is 22533212489. The next prime is 22533212503. The reversal of 22533212502 is 20521233522.

22533212502 is a `hidden beast` number, since 2 + 2 + 533 + 2 + 125 + 0 + 2 = 666.

It is a super-3 number, since 3×22533212502³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22533212503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4532274 + ... + 4537242.

It is an arithmetic number, because the mean of its divisors is an integer number (793212000).

Almost surely, 2^22533212502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22533212502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25382784000).

22533212502 is an abundant number, since it is smaller than the sum of its proper divisors (28232355498).

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

22533212502 is a wasteful number, since it uses less digits than its factorization.

22533212502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6122 (or 6116 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The spelling of 22533212502 in words is "twenty-two billion, five hundred thirty-three million, two hundred twelve thousand, five hundred two".