12220220111212 has 6 divisors (see below), whose sum is σ = 21385385194628. Its totient is φ = 6110110055604.

The previous prime is 12220220111189. The next prime is 12220220111291. The reversal of 12220220111212 is 21211102202221.

It is a self number, because there is not a number n which added to its sum of digits gives 12220220111212.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1527527513898 + ... + 1527527513905.

Almost surely, 2^{12220220111212} is an apocalyptic number.

It is an amenable number.

12220220111212 is a deficient number, since it is larger than the sum of its proper divisors (9165165083416).

12220220111212 is a wasteful number, since it uses less digits than its factorization.

12220220111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3055055027807 (or 3055055027805 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12220220111212 its reverse (21211102202221), we get a palindrome (33431322313433).

The spelling of 12220220111212 in words is "twelve trillion, two hundred twenty billion, two hundred twenty million, one hundred eleven thousand, two hundred twelve".