122220402 has 16 divisors (see below), whose sum is σ = 244645920. Its totient is φ = 40705952.

The previous prime is 122220401. The next prime is 122220409. The reversal of 122220402 is 204022221.

It is not an unprimeable number, because it can be changed into a prime (122220401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168 + ... + 15635.

It is an arithmetic number, because the mean of its divisors is an integer number (15290370).

Almost surely, 2^122220402 is an apocalyptic number.

122220402 is an abundant number, since it is smaller than the sum of its proper divisors (122425518).

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

122220402 is a wasteful number, since it uses less digits than its factorization.

122220402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17097.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 122220402 is about 11055.3336448974. Note that the first 3 decimals coincide. The cubic root of 122220402 is about 496.2660540418.

Adding to 122220402 its reverse (204022221), we get a palindrome (326242623).

The spelling of 122220402 in words is "one hundred twenty-two million, two hundred twenty thousand, four hundred two".