122424420402 has 24 divisors (see below), whose sum is σ = 274399564140. Its totient is φ = 39400962720.

The previous prime is 122424420397. The next prime is 122424420421. The reversal of 122424420402 is 204024424221.

122424420402 is a `hidden beast` number, since 12 + 2 + 4 + 244 + 2 + 0 + 402 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 120659664321 + 1764756081 = 347361^2 + 42009^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117264249 + ... + 117265292.

Almost surely, 2^122424420402 is an apocalyptic number.

122424420402 is an abundant number, since it is smaller than the sum of its proper divisors (151975143738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122424420402 is a wasteful number, since it uses less digits than its factorization.

122424420402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234529578 (or 234529575 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

Adding to 122424420402 its reverse (204024424221), we get a palindrome (326448844623).

The spelling of 122424420402 in words is "one hundred twenty-two billion, four hundred twenty-four million, four hundred twenty thousand, four hundred two".