122420424331 has 16 divisors (see below), whose sum is σ = 126989169120. Its totient is φ = 117954869760.

The previous prime is 122420424307. The next prime is 122420424377. The reversal of 122420424331 is 133424024221.

It is a cyclic number.

It is not a de Polignac number, because 122420424331 - 2⁵ = 122420424299 is a prime.

It is a super-2 number, since 2×122420424331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122420424331.

It is not an unprimeable number, because it can be changed into a prime (122420424391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559036 + ... + 746566.

It is an arithmetic number, because the mean of its divisors is an integer number (7936823070).

Almost surely, 2^122420424331 is an apocalyptic number.

122420424331 is a deficient number, since it is larger than the sum of its proper divisors (4568744789).

122420424331 is a wasteful number, since it uses less digits than its factorization.

122420424331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187806.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 122420424331 its reverse (133424024221), we get a palindrome (255844448552).

The spelling of 122420424331 in words is "one hundred twenty-two billion, four hundred twenty million, four hundred twenty-four thousand, three hundred thirty-one".