402212334321 has 16 divisors (see below), whose sum is σ = 680994428800. Its totient is φ = 229835619504.

The previous prime is 402212334317. The next prime is 402212334373. The reversal of 402212334321 is 123433212204.

402212334321 is a `hidden beast` number, since 4 + 0 + 2 + 2 + 1 + 2 + 334 + 321 = 666.

It is not a de Polignac number, because 402212334321 - 2² = 402212334317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (402212334301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1064053606 + ... + 1064053983.

It is an arithmetic number, because the mean of its divisors is an integer number (42562151800).

Almost surely, 2^402212334321 is an apocalyptic number.

It is an amenable number.

402212334321 is a deficient number, since it is larger than the sum of its proper divisors (278782094479).

402212334321 is a wasteful number, since it uses less digits than its factorization.

402212334321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2128107605 (or 2128107599 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 402212334321 its reverse (123433212204), we get a palindrome (525645546525).

The spelling of 402212334321 in words is "four hundred two billion, two hundred twelve million, three hundred thirty-four thousand, three hundred twenty-one".