20101102220212 has 24 divisors (see below), whose sum is σ = 37904022098600. Its totient is φ = 9272245931136.

The previous prime is 20101102220209. The next prime is 20101102220281. The reversal of 20101102220212 is 21202220110102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8248533344676 + 11852568875536 = 2872026^2 + 3442756^2 .

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, 107944887 + ... + 108130942.

Almost surely, 2^{20101102220212} is an apocalyptic number.

It is an amenable number.

20101102220212 is a deficient number, since it is larger than the sum of its proper divisors (17802919878388).

20101102220212 is a wasteful number, since it uses less digits than its factorization.

20101102220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216077635 (or 216077633 counting only the distinct ones).

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

Adding to 20101102220212 its reverse (21202220110102), we get a palindrome (41303322330314).

The spelling of 20101102220212 in words is "twenty trillion, one hundred one billion, one hundred two million, two hundred twenty thousand, two hundred twelve".