202122113 has 2 divisors, whose sum is σ = 202122114. Its totient is φ = 202122112.

The previous prime is 202122073. The next prime is 202122143. The reversal of 202122113 is 311221202.

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., 119093569 + 83028544 = 10913^2 + 9112^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202122113 is a prime.

It is not a weakly prime, because it can be changed into another prime (202122143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101061056 + 101061057.

It is an arithmetic number, because the mean of its divisors is an integer number (101061057).

Almost surely, 2^202122113 is an apocalyptic number.

It is an amenable number.

202122113 is a deficient number, since it is larger than the sum of its proper divisors (1).

202122113 is an equidigital number, since it uses as much as digits as its factorization.

202122113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 202122113 is about 14216.9656748548. The cubic root of 202122113 is about 586.8646403062.

Adding to 202122113 its reverse (311221202), we get a palindrome (513343315).

The spelling of 202122113 in words is "two hundred two million, one hundred twenty-two thousand, one hundred thirteen".