402212421222 has 16 divisors (see below), whose sum is σ = 816431184192. Its totient is φ = 132069750120.

The previous prime is 402212421211. The next prime is 402212421287. The reversal of 402212421222 is 222124212204.

It is a junction number, because it is equal to n+sod(n) for n = 402212421192 and 402212421201.

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, 500263804 + ... + 500264607.

It is an arithmetic number, because the mean of its divisors is an integer number (51026949012).

Almost surely, 2^402212421222 is an apocalyptic number.

402212421222 is an abundant number, since it is smaller than the sum of its proper divisors (414218762970).

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

402212421222 is a wasteful number, since it uses less digits than its factorization.

402212421222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000528483.

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 402212421222 its reverse (222124212204), we get a palindrome (624336633426).

The spelling of 402212421222 in words is "four hundred two billion, two hundred twelve million, four hundred twenty-one thousand, two hundred twenty-two".