202110011011009 has 2 divisors, whose sum is σ = 202110011011010. Its totient is φ = 202110011011008.

The previous prime is 202110011010997. The next prime is 202110011011043. The reversal of 202110011011009 is 900110110011202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199910529216784 + 2199481794225 = 14138972^2 + 1483065^2 .

It is a cyclic number.

It is not a de Polignac number, because 202110011011009 - 2⁵ = 202110011010977 is a prime.

It is not a weakly prime, because it can be changed into another prime (202110011011099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101055005505504 + 101055005505505.

It is an arithmetic number, because the mean of its divisors is an integer number (101055005505505).

Almost surely, 2^{202110011011009} is an apocalyptic number.

It is an amenable number.

202110011011009 is a deficient number, since it is larger than the sum of its proper divisors (1).

202110011011009 is an equidigital number, since it uses as much as digits as its factorization.

202110011011009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 19.

The spelling of 202110011011009 in words is "two hundred two trillion, one hundred ten billion, eleven million, eleven thousand, nine".