1002111021012 has 96 divisors (see below), whose sum is σ = 2367105689088. Its totient is φ = 329939011584.

The previous prime is 1002111021001. The next prime is 1002111021031. The reversal of 1002111021012 is 2101201112001.

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

It is a congruent number.

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, 908531653 + ... + 908532755.

It is an arithmetic number, because the mean of its divisors is an integer number (24657350928).

Almost surely, 2^{1002111021012} is an apocalyptic number.

1002111021012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1002111021012 is an abundant number, since it is smaller than the sum of its proper divisors (1364994668076).

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

1002111021012 is a wasteful number, since it uses less digits than its factorization.

1002111021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2929 (or 2927 counting only the distinct ones).

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

Adding to 1002111021012 its reverse (2101201112001), we get a palindrome (3103312133013).

The spelling of 1002111021012 in words is "one trillion, two billion, one hundred eleven million, twenty-one thousand, twelve".