22021525222224 has 40 divisors (see below), whose sum is σ = 62060661991392. Its totient is φ = 6673189461120.

The previous prime is 22021525222219. The next prime is 22021525222237. The reversal of 22021525222224 is 42222252512022.

It is a happy number.

It is a super-2 number, since 2×22021525222224² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20853716539 + ... + 20853717594.

Almost surely, 2^{22021525222224} is an apocalyptic number.

22021525222224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22021525222224 is an abundant number, since it is smaller than the sum of its proper divisors (40039136769168).

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

22021525222224 is a wasteful number, since it uses less digits than its factorization.

22021525222224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41707434155 (or 41707434149 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 33.

Adding to 22021525222224 its reverse (42222252512022), we get a palindrome (64243777734246).

The spelling of 22021525222224 in words is "twenty-two trillion, twenty-one billion, five hundred twenty-five million, two hundred twenty-two thousand, two hundred twenty-four".