12221027248228 has 6 divisors (see below), whose sum is σ = 21386797684406. Its totient is φ = 6110513624112.

The previous prime is 12221027248187. The next prime is 12221027248279. The reversal of 12221027248228 is 82284272012221.

It can be written as a sum of positive squares in only one way, i.e., 11070539326564 + 1150487921664 = 3327242^2 + 1072608^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1527628406025 + ... + 1527628406032.

Almost surely, 2^{12221027248228} is an apocalyptic number.

It is an amenable number.

12221027248228 is a deficient number, since it is larger than the sum of its proper divisors (9165770436178).

12221027248228 is a wasteful number, since it uses less digits than its factorization.

12221027248228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3055256812061 (or 3055256812059 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 43.

The spelling of 12221027248228 in words is "twelve trillion, two hundred twenty-one billion, twenty-seven million, two hundred forty-eight thousand, two hundred twenty-eight".