202220112220981 has 2 divisors, whose sum is σ = 202220112220982. Its totient is φ = 202220112220980.

The previous prime is 202220112220939. The next prime is 202220112220999. The reversal of 202220112220981 is 189022211022202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169555972505956 + 32664139715025 = 13021366^2 + 5715255^2 .

It is a cyclic number.

It is not a de Polignac number, because 202220112220981 - 2¹⁷ = 202220112089909 is a prime.

It is a super-2 number, since 2×202220112220981² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202220112820981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101110056110490 + 101110056110491.

It is an arithmetic number, because the mean of its divisors is an integer number (101110056110491).

Almost surely, 2^{202220112220981} is an apocalyptic number.

It is an amenable number.

202220112220981 is a deficient number, since it is larger than the sum of its proper divisors (1).

202220112220981 is an equidigital number, since it uses as much as digits as its factorization.

202220112220981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 34.

The spelling of 202220112220981 in words is "two hundred two trillion, two hundred twenty billion, one hundred twelve million, two hundred twenty thousand, nine hundred eighty-one".