1020998899092 has 48 divisors (see below), whose sum is σ = 2448196470720. Its totient is φ = 330991519488.

The previous prime is 1020998899079. The next prime is 1020998899099. The reversal of 1020998899092 is 2909988990201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020998899099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4125867 + ... + 4366322.

It is an arithmetic number, because the mean of its divisors is an integer number (51004093140).

Almost surely, 2^{1020998899092} is an apocalyptic number.

1020998899092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1020998899092 is an abundant number, since it is smaller than the sum of its proper divisors (1427197571628).

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

1020998899092 is a wasteful number, since it uses less digits than its factorization.

1020998899092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8492472 (or 8492470 counting only the distinct ones).

The product of its (nonzero) digits is 15116544, while the sum is 66.

The spelling of 1020998899092 in words is "one trillion, twenty billion, nine hundred ninety-eight million, eight hundred ninety-nine thousand, ninety-two".