22021020024 has 32 divisors (see below), whose sum is σ = 55071688320. Its totient is φ = 7337788256.

The previous prime is 22021020017. The next prime is 22021020037. The reversal of 22021020024 is 42002012022.

It is a junction number, because it is equal to n+sod(n) for n = 22021019985 and 22021020012.

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, 88362 + ... + 227705.

It is an arithmetic number, because the mean of its divisors is an integer number (1720990260).

Almost surely, 2^22021020024 is an apocalyptic number.

22021020024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22021020024 is an abundant number, since it is smaller than the sum of its proper divisors (33050668296).

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

22021020024 is a wasteful number, since it uses less digits than its factorization.

22021020024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318979 (or 318975 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 22021020024 its reverse (42002012022), we get a palindrome (64023032046).

The spelling of 22021020024 in words is "twenty-two billion, twenty-one million, twenty thousand, twenty-four".