202021211010901 has 2 divisors, whose sum is σ = 202021211010902. Its totient is φ = 202021211010900.

The previous prime is 202021211010889. The next prime is 202021211010907. The reversal of 202021211010901 is 109010112120202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112094415126225 + 89926795884676 = 10587465^2 + 9482974^2 .

It is a cyclic number.

It is not a de Polignac number, because 202021211010901 - 2⁵ = 202021211010869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202021211010907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101010605505450 + 101010605505451.

It is an arithmetic number, because the mean of its divisors is an integer number (101010605505451).

Almost surely, 2^{202021211010901} is an apocalyptic number.

It is an amenable number.

202021211010901 is a deficient number, since it is larger than the sum of its proper divisors (1).

202021211010901 is an equidigital number, since it uses as much as digits as its factorization.

202021211010901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 202021211010901 in words is "two hundred two trillion, twenty-one billion, two hundred eleven million, ten thousand, nine hundred one".