420122122 has 32 divisors (see below), whose sum is σ = 764501760. Its totient is φ = 169032960.

The previous prime is 420122113. The next prime is 420122141. The reversal of 420122122 is 221221024.

It is a junction number, because it is equal to n+sod(n) for n = 420122096 and 420122105.

It is an unprimeable number.

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, 102472 + ... + 106492.

It is an arithmetic number, because the mean of its divisors is an integer number (23890680).

Almost surely, 2^420122122 is an apocalyptic number.

420122122 is a deficient number, since it is larger than the sum of its proper divisors (344379638).

420122122 is a wasteful number, since it uses less digits than its factorization.

420122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4486.

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

The square root of 420122122 is about 20496.8807870856. The cubic root of 420122122 is about 748.9598155034.

Adding to 420122122 its reverse (221221024), we get a palindrome (641343146).

The spelling of 420122122 in words is "four hundred twenty million, one hundred twenty-two thousand, one hundred twenty-two".