980211212021 has 2 divisors, whose sum is σ = 980211212022. Its totient is φ = 980211212020.

The previous prime is 980211211937. The next prime is 980211212033. The reversal of 980211212021 is 120212112089.

980211212021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 538923364996 + 441287847025 = 734114^2 + 664295^2 .

It is an emirp because it is prime and its reverse (120212112089) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 980211212021 - 2¹⁸ = 980210949877 is a prime.

It is a super-3 number, since 3×980211212021³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (980211212081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490105606010 + 490105606011.

It is an arithmetic number, because the mean of its divisors is an integer number (490105606011).

Almost surely, 2^980211212021 is an apocalyptic number.

It is an amenable number.

980211212021 is a deficient number, since it is larger than the sum of its proper divisors (1).

980211212021 is an equidigital number, since it uses as much as digits as its factorization.

980211212021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 29.

The spelling of 980211212021 in words is "nine hundred eighty billion, two hundred eleven million, two hundred twelve thousand, twenty-one".