122220311 has 2 divisors, whose sum is σ = 122220312. Its totient is φ = 122220310.

The previous prime is 122220289. The next prime is 122220317. The reversal of 122220311 is 113022221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122220311 - 2⁶ = 122220247 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122220317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61110155 + 61110156.

It is an arithmetic number, because the mean of its divisors is an integer number (61110156).

Almost surely, 2^122220311 is an apocalyptic number.

122220311 is a deficient number, since it is larger than the sum of its proper divisors (1).

122220311 is an equidigital number, since it uses as much as digits as its factorization.

122220311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 122220311 is about 11055.3295292361. The cubic root of 122220311 is about 496.2659308757.

Adding to 122220311 its reverse (113022221), we get a palindrome (235242532).

The spelling of 122220311 in words is "one hundred twenty-two million, two hundred twenty thousand, three hundred eleven".