402412331222020 has 24 divisors (see below), whose sum is σ = 965789594933184. Its totient is φ = 137969942133216.

The previous prime is 402412331222003. The next prime is 402412331222107. The reversal of 402412331222020 is 20222133214204.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 402412331222020.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1437186897082 + ... + 1437186897361.

It is an arithmetic number, because the mean of its divisors is an integer number (40241233122216).

Almost surely, 2^{402412331222020} is an apocalyptic number.

It is an amenable number.

402412331222020 is an abundant number, since it is smaller than the sum of its proper divisors (563377263711164).

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

402412331222020 is a wasteful number, since it uses less digits than its factorization.

402412331222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2874373794459 (or 2874373794457 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 402412331222020 its reverse (20222133214204), we get a palindrome (422634464436224).

The spelling of 402412331222020 in words is "four hundred two trillion, four hundred twelve billion, three hundred thirty-one million, two hundred twenty-two thousand, twenty".