1320022221187 has 2 divisors, whose sum is σ = 1320022221188. Its totient is φ = 1320022221186.

The previous prime is 1320022221157. The next prime is 1320022221223. The reversal of 1320022221187 is 7811222200231.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1320022221187 is a prime.

It is a super-2 number, since 2×1320022221187² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1320022221157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660011110593 + 660011110594.

It is an arithmetic number, because the mean of its divisors is an integer number (660011110594).

Almost surely, 2^{1320022221187} is an apocalyptic number.

1320022221187 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320022221187 is an equidigital number, since it uses as much as digits as its factorization.

1320022221187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 31.

The spelling of 1320022221187 in words is "one trillion, three hundred twenty billion, twenty-two million, two hundred twenty-one thousand, one hundred eighty-seven".