12221332342 has 16 divisors (see below), whose sum is σ = 19300100400. Its totient is φ = 5788074240.

The previous prime is 12221332339. The next prime is 12221332367. The reversal of 12221332342 is 24323312221.

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, 233134 + ... + 280702.

It is an arithmetic number, because the mean of its divisors is an integer number (1206256275).

Almost surely, 2^12221332342 is an apocalyptic number.

12221332342 is a deficient number, since it is larger than the sum of its proper divisors (7078768058).

12221332342 is a wasteful number, since it uses less digits than its factorization.

12221332342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54351.

The product of its digits is 3456, while the sum is 25.

Adding to 12221332342 its reverse (24323312221), we get a palindrome (36544644563).

The spelling of 12221332342 in words is "twelve billion, two hundred twenty-one million, three hundred thirty-two thousand, three hundred forty-two".