2191269288128 has 14 divisors (see below), whose sum is σ = 4348299993756. Its totient is φ = 1095634644032.

The previous prime is 2191269288119. The next prime is 2191269288137. The reversal of 2191269288128 is 8218829621912.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2191269288119) and next prime (2191269288137).

It is a super-2 number, since 2×2191269288128² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17119291250 + ... + 17119291377.

Almost surely, 2^{2191269288128} is an apocalyptic number.

It is an amenable number.

2191269288128 is a deficient number, since it is larger than the sum of its proper divisors (2157030705628).

2191269288128 is an equidigital number, since it uses as much as digits as its factorization.

2191269288128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34238582639 (or 34238582629 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 59.

The spelling of 2191269288128 in words is "two trillion, one hundred ninety-one billion, two hundred sixty-nine million, two hundred eighty-eight thousand, one hundred twenty-eight".