202420122 has 16 divisors (see below), whose sum is σ = 428654592. Its totient is φ = 63504320.

The previous prime is 202420073. The next prime is 202420123. The reversal of 202420122 is 221024202.

It is not an unprimeable number, because it can be changed into a prime (202420123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 992154 + ... + 992357.

It is an arithmetic number, because the mean of its divisors is an integer number (26790912).

Almost surely, 2^202420122 is an apocalyptic number.

202420122 is an abundant number, since it is smaller than the sum of its proper divisors (226234470).

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

202420122 is a wasteful number, since it uses less digits than its factorization.

202420122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984533.

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

The square root of 202420122 is about 14227.4425670955. The cubic root of 202420122 is about 587.1529232312.

Adding to 202420122 its reverse (221024202), we get a palindrome (423444324).

The spelling of 202420122 in words is "two hundred two million, four hundred twenty thousand, one hundred twenty-two".