12204222142 has 24 divisors (see below), whose sum is σ = 22221001296. Its totient is φ = 5002972128.

The previous prime is 12204222109. The next prime is 12204222167. The reversal of 12204222142 is 24122240221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2704983 + ... + 2709490.

It is an arithmetic number, because the mean of its divisors is an integer number (925875054).

Almost surely, 2^12204222142 is an apocalyptic number.

12204222142 is a deficient number, since it is larger than the sum of its proper divisors (10016779154).

12204222142 is a wasteful number, since it uses less digits than its factorization.

12204222142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5414512 (or 5414505 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 12204222142 its reverse (24122240221), we get a palindrome (36326462363).

The spelling of 12204222142 in words is "twelve billion, two hundred four million, two hundred twenty-two thousand, one hundred forty-two".