421321322242 has 32 divisors (see below), whose sum is σ = 649432433664. Its totient is φ = 204923174400.

The previous prime is 421321322237. The next prime is 421321322293. The reversal of 421321322242 is 242223123124.

It is a self number, because there is not a number n which added to its sum of digits gives 421321322242.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17395713 + ... + 17419915.

It is an arithmetic number, because the mean of its divisors is an integer number (20294763552).

Almost surely, 2^421321322242 is an apocalyptic number.

421321322242 is a deficient number, since it is larger than the sum of its proper divisors (228111111422).

421321322242 is a wasteful number, since it uses less digits than its factorization.

421321322242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25834.

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

Adding to 421321322242 its reverse (242223123124), we get a palindrome (663544445366).

The spelling of 421321322242 in words is "four hundred twenty-one billion, three hundred twenty-one million, three hundred twenty-two thousand, two hundred forty-two".