7115122100 has 72 divisors (see below), whose sum is σ = 15575753088. Its totient is φ = 2821120000.

The previous prime is 7115122097. The next prime is 7115122103. The reversal of 7115122100 is 12215117.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7115122097) and next prime (7115122103).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7115122103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6450149 + ... + 6451251.

It is an arithmetic number, because the mean of its divisors is an integer number (216329904).

Almost surely, 2^7115122100 is an apocalyptic number.

It is an amenable number.

7115122100 is an abundant number, since it is smaller than the sum of its proper divisors (8460630988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7115122100 is a wasteful number, since it uses less digits than its factorization.

7115122100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625 (or 1618 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 20.

The square root of 7115122100 is about 84351.1831570844. The cubic root of 7115122100 is about 1923.3609120580.

Adding to 7115122100 its reverse (12215117), we get a palindrome (7127337217).

The spelling of 7115122100 in words is "seven billion, one hundred fifteen million, one hundred twenty-two thousand, one hundred".