20102011212 has 48 divisors (see below), whose sum is σ = 47303553024. Its totient is φ = 6643920000.

The previous prime is 20102011207. The next prime is 20102011217. The reversal of 20102011212 is 21211020102.

It is an interprime number because it is at equal distance from previous prime (20102011207) and next prime (20102011217).

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

It is not an unprimeable number, because it can be changed into a prime (20102011217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 698712 + ... + 726912.

It is an arithmetic number, because the mean of its divisors is an integer number (985490688).

Almost surely, 2^20102011212 is an apocalyptic number.

It is an amenable number.

20102011212 is an abundant number, since it is smaller than the sum of its proper divisors (27201541812).

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

20102011212 is a wasteful number, since it uses less digits than its factorization.

20102011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28710 (or 28708 counting only the distinct ones).

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

Adding to 20102011212 its reverse (21211020102), we get a palindrome (41313031314).

The spelling of 20102011212 in words is "twenty billion, one hundred two million, eleven thousand, two hundred twelve".