22021012002 has 32 divisors (see below), whose sum is σ = 48071003904. Its totient is φ = 6669539600.

The previous prime is 22021011983. The next prime is 22021012049. The reversal of 22021012002 is 20021012022.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41053 + ... + 213839.

It is an arithmetic number, because the mean of its divisors is an integer number (1502218872).

Almost surely, 2^22021012002 is an apocalyptic number.

22021012002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22021012002 is an abundant number, since it is smaller than the sum of its proper divisors (26049991902).

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

22021012002 is a wasteful number, since it uses less digits than its factorization.

22021012002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174734.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22021012002 its reverse (20021012022), we get a palindrome (42042024024).

The spelling of 22021012002 in words is "twenty-two billion, twenty-one million, twelve thousand, two".