1020012100988 has 12 divisors (see below), whose sum is σ = 1785087656352. Its totient is φ = 509987056320.

The previous prime is 1020012100973. The next prime is 1020012101027. The reversal of 1020012100988 is 8890012100201.

It is a super-2 number, since 2×1020012100988² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4627373 + ... + 4842788.

It is an arithmetic number, because the mean of its divisors is an integer number (148757304696).

Almost surely, 2^{1020012100988} is an apocalyptic number.

It is an amenable number.

1020012100988 is a deficient number, since it is larger than the sum of its proper divisors (765075555364).

1020012100988 is a wasteful number, since it uses less digits than its factorization.

1020012100988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9497092 (or 9497090 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 32.

The spelling of 1020012100988 in words is "one trillion, twenty billion, twelve million, one hundred thousand, nine hundred eighty-eight".