122212537 has 2 divisors, whose sum is σ = 122212538. Its totient is φ = 122212536.

The previous prime is 122212529. The next prime is 122212543. The reversal of 122212537 is 735212221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115369081 + 6843456 = 10741^2 + 2616^2 .

It is a cyclic number.

It is not a de Polignac number, because 122212537 - 2³ = 122212529 is a prime.

It is not a weakly prime, because it can be changed into another prime (122212577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61106268 + 61106269.

It is an arithmetic number, because the mean of its divisors is an integer number (61106269).

Almost surely, 2^122212537 is an apocalyptic number.

It is an amenable number.

122212537 is a deficient number, since it is larger than the sum of its proper divisors (1).

122212537 is an equidigital number, since it uses as much as digits as its factorization.

122212537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 25.

The square root of 122212537 is about 11054.9779285171. The cubic root of 122212537 is about 496.2554087481.

Adding to 122212537 its reverse (735212221), we get a palindrome (857424758).

The spelling of 122212537 in words is "one hundred twenty-two million, two hundred twelve thousand, five hundred thirty-seven".