20101121112212 has 48 divisors (see below), whose sum is σ = 42321072286080. Its totient is φ = 8160793804800.

The previous prime is 20101121112209. The next prime is 20101121112223. The reversal of 20101121112212 is 21221112110102.

It is a congruent number.

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, 6449012 + ... + 9043892.

It is an arithmetic number, because the mean of its divisors is an integer number (881689005960).

Almost surely, 2^{20101121112212} is an apocalyptic number.

It is an amenable number.

20101121112212 is an abundant number, since it is smaller than the sum of its proper divisors (22219951173868).

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

20101121112212 is a wasteful number, since it uses less digits than its factorization.

20101121112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2609472 (or 2609470 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 20101121112212 its reverse (21221112110102), we get a palindrome (41322233222314).

The spelling of 20101121112212 in words is "twenty trillion, one hundred one billion, one hundred twenty-one million, one hundred twelve thousand, two hundred twelve".