202021211998163 has 2 divisors, whose sum is σ = 202021211998164. Its totient is φ = 202021211998162.

The previous prime is 202021211998147. The next prime is 202021211998211. The reversal of 202021211998163 is 361899112120202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 202021211998163 - 2⁴ = 202021211998147 is a prime.

It is not a weakly prime, because it can be changed into another prime (202021211298163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101010605999081 + 101010605999082.

It is an arithmetic number, because the mean of its divisors is an integer number (101010605999082).

Almost surely, 2^{202021211998163} is an apocalyptic number.

202021211998163 is a deficient number, since it is larger than the sum of its proper divisors (1).

202021211998163 is an equidigital number, since it uses as much as digits as its factorization.

202021211998163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 47.

The spelling of 202021211998163 in words is "two hundred two trillion, twenty-one billion, two hundred eleven million, nine hundred ninety-eight thousand, one hundred sixty-three".