1228166102722 has 24 divisors (see below), whose sum is σ = 2107529122356. Its totient is φ = 533502014208.

The previous prime is 1228166102707. The next prime is 1228166102741. The reversal of 1228166102722 is 2272016618221.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1033798864081 + 194367238641 = 1016759^2 + 440871^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81717673 + ... + 81732700.

Almost surely, 2^{1228166102722} is an apocalyptic number.

1228166102722 is a deficient number, since it is larger than the sum of its proper divisors (879363019634).

1228166102722 is a wasteful number, since it uses less digits than its factorization.

1228166102722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163450422 (or 163450405 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 1228166102722 in words is "one trillion, two hundred twenty-eight billion, one hundred sixty-six million, one hundred two thousand, seven hundred twenty-two".