12221102202112 has 36 divisors (see below), whose sum is σ = 24394888128100. Its totient is φ = 6110445293568.

The previous prime is 12221102202107. The next prime is 12221102202143. The reversal of 12221102202112 is 21120220112221.

It can be written as a sum of positive squares in 2 ways, for example, as 8427083867136 + 3794018334976 = 2902944^2 + 1947824^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12221102202112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15611014 + ... + 16375162.

Almost surely, 2^{12221102202112} is an apocalyptic number.

It is an amenable number.

12221102202112 is a deficient number, since it is larger than the sum of its proper divisors (12173785925988).

12221102202112 is an frugal number, since it uses more digits than its factorization.

12221102202112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826638 (or 826624 counting only the distinct ones).

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

Adding to 12221102202112 its reverse (21120220112221), we get a palindrome (33341322314333).

The spelling of 12221102202112 in words is "twelve trillion, two hundred twenty-one billion, one hundred two million, two hundred two thousand, one hundred twelve".