1021498140992 has 28 divisors (see below), whose sum is σ = 2316611856480. Its totient is φ = 437784917376.

The previous prime is 1021498140991. The next prime is 1021498141009. The reversal of 1021498140992 is 2990418941201.

It is a tau number, because it is divible by the number of its divisors (28).

It is a super-2 number, since 2×1021498140992² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1021498140992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021498140991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1140064442 + ... + 1140065337.

Almost surely, 2^{1021498140992} is an apocalyptic number.

It is an amenable number.

1021498140992 is an abundant number, since it is smaller than the sum of its proper divisors (1295113715488).

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

1021498140992 is an equidigital number, since it uses as much as digits as its factorization.

1021498140992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2280129798 (or 2280129788 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 50.

The spelling of 1021498140992 in words is "one trillion, twenty-one billion, four hundred ninety-eight million, one hundred forty thousand, nine hundred ninety-two".