20122312210 has 64 divisors (see below), whose sum is σ = 48631290624. Its totient is φ = 5789433600.

The previous prime is 20122312193. The next prime is 20122312267. The reversal of 20122312210 is 1221322102.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 995101 + ... + 1015120.

It is an arithmetic number, because the mean of its divisors is an integer number (759863916).

Almost surely, 2^20122312210 is an apocalyptic number.

20122312210 is an abundant number, since it is smaller than the sum of its proper divisors (28508978414).

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

20122312210 is a wasteful number, since it uses less digits than its factorization.

20122312210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010259.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20122312210 its reverse (1221322102), we get a palindrome (21343634312).

The spelling of 20122312210 in words is "twenty billion, one hundred twenty-two million, three hundred twelve thousand, two hundred ten".