101166702802021 has 2 divisors, whose sum is σ = 101166702802022. Its totient is φ = 101166702802020.

The previous prime is 101166702802013. The next prime is 101166702802037. The reversal of 101166702802021 is 120208207661101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101116398592225 + 50304209796 = 10055665^2 + 224286^2 .

It is a cyclic number.

It is not a de Polignac number, because 101166702802021 - 2³ = 101166702802013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101166702802051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50583351401010 + 50583351401011.

It is an arithmetic number, because the mean of its divisors is an integer number (50583351401011).

Almost surely, 2^{101166702802021} is an apocalyptic number.

It is an amenable number.

101166702802021 is a deficient number, since it is larger than the sum of its proper divisors (1).

101166702802021 is an equidigital number, since it uses as much as digits as its factorization.

101166702802021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 37.

The spelling of 101166702802021 in words is "one hundred one trillion, one hundred sixty-six billion, seven hundred two million, eight hundred two thousand, twenty-one".