20112002111012 has 12 divisors (see below), whose sum is σ = 40224004222080. Its totient is φ = 8619429476136.

The previous prime is 20112002111011. The next prime is 20112002111093. The reversal of 20112002111012 is 21011120021102.

20112002111012 is an admirable number.

It is a super-2 number, since 2×20112002111012² (a number of 27 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (20112002111011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359142894812 + ... + 359142894867.

It is an arithmetic number, because the mean of its divisors is an integer number (3352000351840).

Almost surely, 2^{20112002111012} is an apocalyptic number.

It is an amenable number.

20112002111012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20112002111012 is a wasteful number, since it uses less digits than its factorization.

20112002111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718285789690 (or 718285789688 counting only the distinct ones).

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

Adding to 20112002111012 its reverse (21011120021102), we get a palindrome (41123122132114).

The spelling of 20112002111012 in words is "twenty trillion, one hundred twelve billion, two million, one hundred eleven thousand, twelve".