20012210111012 has 48 divisors (see below), whose sum is σ = 40149834092928. Its totient is φ = 8549822488320.

The previous prime is 20012210110987. The next prime is 20012210111021. The reversal of 20012210111012 is 21011101221002.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 12839543 + ... + 14313569.

It is an arithmetic number, because the mean of its divisors is an integer number (836454876936).

Almost surely, 2^{20012210111012} is an apocalyptic number.

It is an amenable number.

20012210111012 is an abundant number, since it is smaller than the sum of its proper divisors (20137623981916).

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

20012210111012 is a wasteful number, since it uses less digits than its factorization.

20012210111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475556 (or 1475554 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20012210111012 its reverse (21011101221002), we get a palindrome (41023311332014).

The spelling of 20012210111012 in words is "twenty trillion, twelve billion, two hundred ten million, one hundred eleven thousand, twelve".