202221373 has 2 divisors, whose sum is σ = 202221374. Its totient is φ = 202221372.

The previous prime is 202221367. The next prime is 202221377. The reversal of 202221373 is 373122202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199459129 + 2762244 = 14123^2 + 1662^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202221373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202221377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101110686 + 101110687.

It is an arithmetic number, because the mean of its divisors is an integer number (101110687).

Almost surely, 2^202221373 is an apocalyptic number.

It is an amenable number.

202221373 is a deficient number, since it is larger than the sum of its proper divisors (1).

202221373 is an equidigital number, since it uses as much as digits as its factorization.

202221373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 202221373 is about 14220.4561459891. The cubic root of 202221373 is about 586.9606922263.

Adding to 202221373 its reverse (373122202), we get a palindrome (575343575).

The spelling of 202221373 in words is "two hundred two million, two hundred twenty-one thousand, three hundred seventy-three".