20101020211012 has 48 divisors (see below), whose sum is σ = 38505214508544. Its totient is φ = 9124951248000.

The previous prime is 20101020211009. The next prime is 20101020211039. The reversal of 20101020211012 is 21011202010102.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 20101020210983 and 20101020211001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92612337 + ... + 92829127.

It is an arithmetic number, because the mean of its divisors is an integer number (802191968928).

Almost surely, 2^{20101020211012} is an apocalyptic number.

It is an amenable number.

20101020211012 is a deficient number, since it is larger than the sum of its proper divisors (18404194297532).

20101020211012 is a wasteful number, since it uses less digits than its factorization.

20101020211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246100 (or 246098 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20101020211012 its reverse (21011202010102), we get a palindrome (41112222221114).

The spelling of 20101020211012 in words is "twenty trillion, one hundred one billion, twenty million, two hundred eleven thousand, twelve".