420011212122 has 12 divisors (see below), whose sum is σ = 910024292970. Its totient is φ = 140003737368.

The previous prime is 420011212057. The next prime is 420011212141. The reversal of 420011212122 is 221212110024.

420011212122 is a `hidden beast` number, since 420 + 0 + 1 + 121 + 2 + 122 = 666.

It can be written as a sum of positive squares in only one way, i.e., 249689096721 + 170322115401 = 499689^2 + 412701^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 23333956229 = 420011212122 / (4 + 2 + 0 + 0 + 1 + 1 + 2 + 1 + 2 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 420011212095 and 420011212104.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11666978097 + ... + 11666978132.

Almost surely, 2^420011212122 is an apocalyptic number.

420011212122 is an abundant number, since it is smaller than the sum of its proper divisors (490013080848).

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

420011212122 is a wasteful number, since it uses less digits than its factorization.

420011212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23333956237 (or 23333956234 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 420011212122 its reverse (221212110024), we get a palindrome (641223322146).

The spelling of 420011212122 in words is "four hundred twenty billion, eleven million, two hundred twelve thousand, one hundred twenty-two".