122362621 has 2 divisors, whose sum is σ = 122362622. Its totient is φ = 122362620.

The previous prime is 122362619. The next prime is 122362627. The reversal of 122362621 is 126263221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122345721 + 16900 = 11061^2 + 130^2 .

It is a cyclic number.

It is not a de Polignac number, because 122362621 - 2¹ = 122362619 is a prime.

It is a super-2 number, since 2×122362621² = 29945222035979282, which contains 22 as substring.

Together with 122362619, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122362627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61181310 + 61181311.

It is an arithmetic number, because the mean of its divisors is an integer number (61181311).

Almost surely, 2^122362621 is an apocalyptic number.

It is an amenable number.

122362621 is a deficient number, since it is larger than the sum of its proper divisors (1).

122362621 is an equidigital number, since it uses as much as digits as its factorization.

122362621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 25.

The square root of 122362621 is about 11061.7639190140. The cubic root of 122362621 is about 496.4584690091.

The spelling of 122362621 in words is "one hundred twenty-two million, three hundred sixty-two thousand, six hundred twenty-one".