12031143222 has 32 divisors (see below), whose sum is σ = 27743127552. Its totient is φ = 3407048064.

The previous prime is 12031143217. The next prime is 12031143233. The reversal of 12031143222 is 22234113021.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

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, 1262758 + ... + 1272249.

It is an arithmetic number, because the mean of its divisors is an integer number (866972736).

Almost surely, 2^12031143222 is an apocalyptic number.

12031143222 is an abundant number, since it is smaller than the sum of its proper divisors (15711984330).

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

12031143222 is a wasteful number, since it uses less digits than its factorization.

12031143222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2535132.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12031143222 its reverse (22234113021), we get a palindrome (34265256243).

The spelling of 12031143222 in words is "twelve billion, thirty-one million, one hundred forty-three thousand, two hundred twenty-two".