12212223202112 has 14 divisors (see below), whose sum is σ = 24233630416818. Its totient is φ = 6106111601024.

The previous prime is 12212223202099. The next prime is 12212223202141. The reversal of 12212223202112 is 21120232221221.

It can be written as a sum of positive squares in only one way, i.e., 11826005698816 + 386217503296 = 3438896^2 + 621464^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95407993703 + ... + 95407993830.

Almost surely, 2^{12212223202112} is an apocalyptic number.

It is an amenable number.

12212223202112 is a deficient number, since it is larger than the sum of its proper divisors (12021407214706).

12212223202112 is an equidigital number, since it uses as much as digits as its factorization.

12212223202112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190815987545 (or 190815987535 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 12212223202112 its reverse (21120232221221), we get a palindrome (33332455423333).

The spelling of 12212223202112 in words is "twelve trillion, two hundred twelve billion, two hundred twenty-three million, two hundred two thousand, one hundred twelve".