402212334412 has 18 divisors (see below), whose sum is σ = 818789395452. Its totient is φ = 172376714664.

The previous prime is 402212334409. The next prime is 402212334413. The reversal of 402212334412 is 214433212204.

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

It is not an unprimeable number, because it can be changed into a prime (402212334413) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1026051678 + ... + 1026052069.

Almost surely, 2^402212334412 is an apocalyptic number.

It is an amenable number.

402212334412 is an abundant number, since it is smaller than the sum of its proper divisors (416577061040).

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

402212334412 is a wasteful number, since it uses less digits than its factorization.

402212334412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052103765 (or 2052103756 counting only the distinct ones).

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

Adding to 402212334412 its reverse (214433212204), we get a palindrome (616645546616).

The spelling of 402212334412 in words is "four hundred two billion, two hundred twelve million, three hundred thirty-four thousand, four hundred twelve".