20110220010012 has 72 divisors (see below), whose sum is σ = 54611419112208. Its totient is φ = 5735535111680.

The previous prime is 20110220009989. The next prime is 20110220010037. The reversal of 20110220010012 is 21001002201102.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20110220010012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 407328663 + ... + 407378030.

It is an arithmetic number, because the mean of its divisors is an integer number (758491932114).

Almost surely, 2^{20110220010012} is an apocalyptic number.

20110220010012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20110220010012 is an abundant number, since it is smaller than the sum of its proper divisors (34501199102196).

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

20110220010012 is a wasteful number, since it uses less digits than its factorization.

20110220010012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814706739 (or 814706726 counting only the distinct ones).

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

Adding to 20110220010012 its reverse (21001002201102), we get a palindrome (41111222211114).

The spelling of 20110220010012 in words is "twenty trillion, one hundred ten billion, two hundred twenty million, ten thousand, twelve".