122221331 has 2 divisors, whose sum is σ = 122221332. Its totient is φ = 122221330.

The previous prime is 122221327. The next prime is 122221367. The reversal of 122221331 is 133122221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122221331 - 2² = 122221327 is a prime.

It is a super-2 number, since 2×122221331² = 29876107502823122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122221301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61110665 + 61110666.

It is an arithmetic number, because the mean of its divisors is an integer number (61110666).

Almost surely, 2^122221331 is an apocalyptic number.

122221331 is a deficient number, since it is larger than the sum of its proper divisors (1).

122221331 is an equidigital number, since it uses as much as digits as its factorization.

122221331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 17.

The square root of 122221331 is about 11055.3756607363. The cubic root of 122221331 is about 496.2673114151.

Adding to 122221331 its reverse (133122221), we get a palindrome (255343552).

The spelling of 122221331 in words is "one hundred twenty-two million, two hundred twenty-one thousand, three hundred thirty-one".