402212320412 has 24 divisors (see below), whose sum is σ = 806547154560. Its totient is φ = 171921884400.

The previous prime is 402212320381. The next prime is 402212320427. The reversal of 402212320412 is 214023212204.

It is a congruent number.

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, 18940214 + ... + 18961437.

It is an arithmetic number, because the mean of its divisors is an integer number (33606131440).

Almost surely, 2^402212320412 is an apocalyptic number.

It is an amenable number.

402212320412 is an abundant number, since it is smaller than the sum of its proper divisors (404334834148).

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

402212320412 is a wasteful number, since it uses less digits than its factorization.

402212320412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37902041 (or 37902039 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 402212320412 its reverse (214023212204), we get a palindrome (616235532616).

The spelling of 402212320412 in words is "four hundred two billion, two hundred twelve million, three hundred twenty thousand, four hundred twelve".