22012023524 has 12 divisors (see below), whose sum is σ = 38531144064. Its totient is φ = 11003125224.

The previous prime is 22012023503. The next prime is 22012023577. The reversal of 22012023524 is 42532021022.

It is a super-2 number, since 2×22012023524² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22012023524.

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, 704432 + ... + 735015.

It is an arithmetic number, because the mean of its divisors is an integer number (3210928672).

Almost surely, 2^22012023524 is an apocalyptic number.

It is an amenable number.

22012023524 is a deficient number, since it is larger than the sum of its proper divisors (16519120540).

22012023524 is a wasteful number, since it uses less digits than its factorization.

22012023524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443274 (or 1443272 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 22012023524 its reverse (42532021022), we get a palindrome (64544044546).

The spelling of 22012023524 in words is "twenty-two billion, twelve million, twenty-three thousand, five hundred twenty-four".