20101022212210 has 8 divisors (see below), whose sum is σ = 36181839981996. Its totient is φ = 8040408884880.

The previous prime is 20101022212169. The next prime is 20101022212223. The reversal of 20101022212210 is 1221222010102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20041442772289 + 59579439921 = 4476767^2 + 244089^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1005051110601 + ... + 1005051110620.

Almost surely, 2^{20101022212210} is an apocalyptic number.

20101022212210 is a deficient number, since it is larger than the sum of its proper divisors (16080817769786).

20101022212210 is a wasteful number, since it uses less digits than its factorization.

20101022212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010102221228.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20101022212210 its reverse (1221222010102), we get a palindrome (21322244222312).

The spelling of 20101022212210 in words is "twenty trillion, one hundred one billion, twenty-two million, two hundred twelve thousand, two hundred ten".