420122132 has 24 divisors (see below), whose sum is σ = 745424064. Its totient is φ = 207159552.

The previous prime is 420122113. The next prime is 420122141. The reversal of 420122132 is 231221024.

It is a self number, because there is not a number n which added to its sum of digits gives 420122132.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 117353 + ... + 120879.

It is an arithmetic number, because the mean of its divisors is an integer number (31059336).

Almost surely, 2^420122132 is an apocalyptic number.

It is an amenable number.

420122132 is a deficient number, since it is larger than the sum of its proper divisors (325301932).

420122132 is a wasteful number, since it uses less digits than its factorization.

420122132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3935 (or 3933 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 420122132 is about 20496.8810310252. The cubic root of 420122132 is about 748.9598214458.

Adding to 420122132 its reverse (231221024), we get a palindrome (651343156).

It can be divided in two parts, 42012 and 2132, that added together give a palindrome (44144).

The spelling of 420122132 in words is "four hundred twenty million, one hundred twenty-two thousand, one hundred thirty-two".