7122185250 has 64 divisors (see below), whose sum is σ = 17806943232. Its totient is φ = 1896048000.

The previous prime is 7122185233. The next prime is 7122185261. The reversal of 7122185250 is 525812217.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 455055 + ... + 470445.

It is an arithmetic number, because the mean of its divisors is an integer number (278233488).

Almost surely, 2^7122185250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7122185250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8903471616).

7122185250 is an abundant number, since it is smaller than the sum of its proper divisors (10684757982).

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

7122185250 is a wasteful number, since it uses less digits than its factorization.

7122185250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16028 (or 16018 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 7122185250 is about 84393.0402936166. The cubic root of 7122185250 is about 1923.9971388466.

Adding to 7122185250 its reverse (525812217), we get a palindrome (7647997467).

The spelling of 7122185250 in words is "seven billion, one hundred twenty-two million, one hundred eighty-five thousand, two hundred fifty".