20112212210 has 32 divisors (see below), whose sum is σ = 36500155200. Its totient is φ = 7978788928.

The previous prime is 20112212203. The next prime is 20112212251. The reversal of 20112212210 is 1221221102.

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, 1007789 + ... + 1027551.

It is an arithmetic number, because the mean of its divisors is an integer number (1140629850).

Almost surely, 2^20112212210 is an apocalyptic number.

20112212210 is a deficient number, since it is larger than the sum of its proper divisors (16387942990).

20112212210 is a wasteful number, since it uses less digits than its factorization.

20112212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20602.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20112212210 its reverse (1221221102), we get a palindrome (21333433312).

The spelling of 20112212210 in words is "twenty billion, one hundred twelve million, two hundred twelve thousand, two hundred ten".