1222013137 has 2 divisors, whose sum is σ = 1222013138. Its totient is φ = 1222013136.

The previous prime is 1222013059. The next prime is 1222013147. The reversal of 1222013137 is 7313102221.

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., 972878481 + 249134656 = 31191^2 + 15784^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222013137 - 2²⁷ = 1087795409 is a prime.

It is a super-2 number, since 2×1222013137² = 2986632214001161538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1222013147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611006568 + 611006569.

It is an arithmetic number, because the mean of its divisors is an integer number (611006569).

Almost surely, 2^1222013137 is an apocalyptic number.

It is an amenable number.

1222013137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222013137 is an equidigital number, since it uses as much as digits as its factorization.

1222013137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 1222013137 is about 34957.3044870453. The cubic root of 1222013137 is about 1069.1171385191.

Adding to 1222013137 its reverse (7313102221), we get a palindrome (8535115358).

The spelling of 1222013137 in words is "one billion, two hundred twenty-two million, thirteen thousand, one hundred thirty-seven".