980211112021 has 4 divisors (see below), whose sum is σ = 1011830825344. Its totient is φ = 948591398700.

The previous prime is 980211111973. The next prime is 980211112073. The reversal of 980211112021 is 120211112089.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 980211112021 - 2³⁵ = 945851373653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980211112121) 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, 15809856615 + ... + 15809856676.

It is an arithmetic number, because the mean of its divisors is an integer number (252957706336).

Almost surely, 2^980211112021 is an apocalyptic number.

It is an amenable number.

980211112021 is a deficient number, since it is larger than the sum of its proper divisors (31619713323).

980211112021 is a wasteful number, since it uses less digits than its factorization.

980211112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31619713322.

The product of its (nonzero) digits is 576, while the sum is 28.

The spelling of 980211112021 in words is "nine hundred eighty billion, two hundred eleven million, one hundred twelve thousand, twenty-one".