20101012212 has 24 divisors (see below), whose sum is σ = 46915444576. Its totient is φ = 6698468448.

The previous prime is 20101012207. The next prime is 20101012241. The reversal of 20101012212 is 21221010102.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 188458 + ... + 275169.

Almost surely, 2^20101012212 is an apocalyptic number.

It is an amenable number.

20101012212 is an abundant number, since it is smaller than the sum of its proper divisors (26814432364).

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

20101012212 is a wasteful number, since it uses less digits than its factorization.

20101012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467247 (or 467245 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20101012212 its reverse (21221010102), we get a palindrome (41322022314).

The spelling of 20101012212 in words is "twenty billion, one hundred one million, twelve thousand, two hundred twelve".