122412402 has 48 divisors (see below), whose sum is σ = 319076160. Its totient is φ = 33133536.

The previous prime is 122412401. The next prime is 122412419. The reversal of 122412402 is 204214221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (122412401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23173 + ... + 27960.

It is an arithmetic number, because the mean of its divisors is an integer number (6647420).

Almost surely, 2^122412402 is an apocalyptic number.

122412402 is an abundant number, since it is smaller than the sum of its proper divisors (196663758).

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

122412402 is a wasteful number, since it uses less digits than its factorization.

122412402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51167 (or 51164 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 122412402 is about 11064.0138286248. The cubic root of 122412402 is about 496.5257849048.

Adding to 122412402 its reverse (204214221), we get a palindrome (326626623).

The spelling of 122412402 in words is "one hundred twenty-two million, four hundred twelve thousand, four hundred two".