1011102120012 has 96 divisors (see below), whose sum is σ = 2425834736640. Its totient is φ = 327652300800.

The previous prime is 1011102119983. The next prime is 1011102120031. The reversal of 1011102120012 is 2100212011101.

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 1011102120012.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102116262 + ... + 102126162.

It is an arithmetic number, because the mean of its divisors is an integer number (25269111840).

Almost surely, 2^{1011102120012} is an apocalyptic number.

1011102120012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1011102120012 is an abundant number, since it is smaller than the sum of its proper divisors (1414732616628).

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

1011102120012 is a wasteful number, since it uses less digits than its factorization.

1011102120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11551 (or 11549 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1011102120012 its reverse (2100212011101), we get a palindrome (3111314131113).

The spelling of 1011102120012 in words is "one trillion, eleven billion, one hundred two million, one hundred twenty thousand, twelve".