122212402 has 32 divisors (see below), whose sum is σ = 202112064. Its totient is φ = 55080000.

The previous prime is 122212399. The next prime is 122212403. The reversal of 122212402 is 204212221.

It is not an unprimeable number, because it can be changed into a prime (122212403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 397933 + ... + 398239.

It is an arithmetic number, because the mean of its divisors is an integer number (6316002).

Almost surely, 2^122212402 is an apocalyptic number.

122212402 is a deficient number, since it is larger than the sum of its proper divisors (79899662).

122212402 is a wasteful number, since it uses less digits than its factorization.

122212402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 122212402 is about 11054.9718226687. The cubic root of 122212402 is about 496.2552260213.

Adding to 122212402 its reverse (204212221), we get a palindrome (326424623).

The spelling of 122212402 in words is "one hundred twenty-two million, two hundred twelve thousand, four hundred two".