88121249091 has 12 divisors (see below), whose sum is σ = 127308349480. Its totient is φ = 58737299040.

The previous prime is 88121249089. The next prime is 88121249093. The reversal of 88121249091 is 19094212188.

It is an interprime number because it is at equal distance from previous prime (88121249089) and next prime (88121249093).

It is not a de Polignac number, because 88121249091 - 2¹ = 88121249089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88121249093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 795130 + ... + 899151.

Almost surely, 2^88121249091 is an apocalyptic number.

88121249091 is a deficient number, since it is larger than the sum of its proper divisors (39187100389).

88121249091 is a wasteful number, since it uses less digits than its factorization.

88121249091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700066 (or 1700063 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The spelling of 88121249091 in words is "eighty-eight billion, one hundred twenty-one million, two hundred forty-nine thousand, ninety-one".