202118801 has 2 divisors, whose sum is σ = 202118802. Its totient is φ = 202118800.

The previous prime is 202118767. The next prime is 202118821. The reversal of 202118801 is 108811202.

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., 128845201 + 73273600 = 11351^2 + 8560^2 .

It is a cyclic number.

It is not a de Polignac number, because 202118801 - 2⁶ = 202118737 is a prime.

It is not a weakly prime, because it can be changed into another prime (202118821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101059400 + 101059401.

It is an arithmetic number, because the mean of its divisors is an integer number (101059401).

Almost surely, 2^202118801 is an apocalyptic number.

It is an amenable number.

202118801 is a deficient number, since it is larger than the sum of its proper divisors (1).

202118801 is an equidigital number, since it uses as much as digits as its factorization.

202118801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 202118801 is about 14216.8491938263. The cubic root of 202118801 is about 586.8614348078.

The spelling of 202118801 in words is "two hundred two million, one hundred eighteen thousand, eight hundred one".