2021983280961 has 32 divisors (see below), whose sum is σ = 3132049536000. Its totient is φ = 1136324566080.

The previous prime is 2021983280927. The next prime is 2021983281001. The reversal of 2021983280961 is 1690823891202.

It is not a de Polignac number, because 2021983280961 - 2¹⁴ = 2021983264577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2021983280921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9759910 + ... + 9964928.

It is an arithmetic number, because the mean of its divisors is an integer number (97876548000).

Almost surely, 2^{2021983280961} is an apocalyptic number.

2021983280961 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2021983280961 is a deficient number, since it is larger than the sum of its proper divisors (1110066255039).

2021983280961 is a wasteful number, since it uses less digits than its factorization.

2021983280961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212789.

The product of its (nonzero) digits is 746496, while the sum is 51.

The spelling of 2021983280961 in words is "two trillion, twenty-one billion, nine hundred eighty-three million, two hundred eighty thousand, nine hundred sixty-one".