20110102212 has 48 divisors (see below), whose sum is σ = 48212138240. Its totient is φ = 6519439872.

The previous prime is 20110102157. The next prime is 20110102241. The reversal of 20110102212 is 21220101102.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1220364 + ... + 1236732.

Almost surely, 2^20110102212 is an apocalyptic number.

It is an amenable number.

20110102212 is an abundant number, since it is smaller than the sum of its proper divisors (28102036028).

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

20110102212 is a wasteful number, since it uses less digits than its factorization.

20110102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19180 (or 19178 counting only the distinct ones).

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

Adding to 20110102212 its reverse (21220101102), we get a palindrome (41330203314).

The spelling of 20110102212 in words is "twenty billion, one hundred ten million, one hundred two thousand, two hundred twelve".