122420311 has 4 divisors (see below), whose sum is σ = 131837272. Its totient is φ = 113003352.

The previous prime is 122420303. The next prime is 122420317. The reversal of 122420311 is 113024221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113024221 = 73 ⋅1548277.

It is a cyclic number.

It is not a de Polignac number, because 122420311 - 2³ = 122420303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122420317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4708461 + ... + 4708486.

It is an arithmetic number, because the mean of its divisors is an integer number (32959318).

Almost surely, 2^122420311 is an apocalyptic number.

122420311 is a deficient number, since it is larger than the sum of its proper divisors (9416961).

122420311 is an equidigital number, since it uses as much as digits as its factorization.

122420311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9416960.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 122420311 is about 11064.3712428678. The cubic root of 122420311 is about 496.5364780965.

Adding to 122420311 its reverse (113024221), we get a palindrome (235444532).

The spelling of 122420311 in words is "one hundred twenty-two million, four hundred twenty thousand, three hundred eleven".