420122331 has 12 divisors (see below), whose sum is σ = 619755552. Its totient is φ = 274122096.

The previous prime is 420122321. The next prime is 420122363. The reversal of 420122331 is 133221024.

420122331 is a `hidden beast` number, since 420 + 12 + 233 + 1 = 666.

It is not a de Polignac number, because 420122331 - 2⁶ = 420122267 is a prime.

It is a super-2 number, since 2×420122331² = 353005546009747122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (420122321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 496176 + ... + 497021.

It is an arithmetic number, because the mean of its divisors is an integer number (51646296).

Almost surely, 2^420122331 is an apocalyptic number.

420122331 is a deficient number, since it is larger than the sum of its proper divisors (199633221).

420122331 is a wasteful number, since it uses less digits than its factorization.

420122331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993250 (or 993247 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 420122331 is about 20496.8858854217. The cubic root of 420122331 is about 748.9599396995.

Adding to 420122331 its reverse (133221024), we get a palindrome (553343355).

The spelling of 420122331 in words is "four hundred twenty million, one hundred twenty-two thousand, three hundred thirty-one".