1021097900424 has 256 divisors, whose sum is σ = 3155811840000. Its totient is φ = 268974148608.

The previous prime is 1021097900393. The next prime is 1021097900437. The reversal of 1021097900424 is 4240097901201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15264202 + ... + 15330950.

It is an arithmetic number, because the mean of its divisors is an integer number (12327390000).

Almost surely, 2^{1021097900424} is an apocalyptic number.

1021097900424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021097900424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1577905920000).

1021097900424 is an abundant number, since it is smaller than the sum of its proper divisors (2134713939576).

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

1021097900424 is a wasteful number, since it uses less digits than its factorization.

1021097900424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66932 (or 66928 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The spelling of 1021097900424 in words is "one trillion, twenty-one billion, ninety-seven million, nine hundred thousand, four hundred twenty-four".