122242531 has 2 divisors, whose sum is σ = 122242532. Its totient is φ = 122242530.

The previous prime is 122242489. The next prime is 122242541. The reversal of 122242531 is 135242221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122242531 - 2¹¹ = 122240483 is a prime.

It is a super-2 number, since 2×122242531² = 29886472770571922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122242541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61121265 + 61121266.

It is an arithmetic number, because the mean of its divisors is an integer number (61121266).

Almost surely, 2^122242531 is an apocalyptic number.

122242531 is a deficient number, since it is larger than the sum of its proper divisors (1).

122242531 is an equidigital number, since it uses as much as digits as its factorization.

122242531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 22.

The square root of 122242531 is about 11056.3344287336. The cubic root of 122242531 is about 496.2960032391.

Adding to 122242531 its reverse (135242221), we get a palindrome (257484752).

The spelling of 122242531 in words is "one hundred twenty-two million, two hundred forty-two thousand, five hundred thirty-one".