9122250720 has 192 divisors, whose sum is σ = 32112702720. Its totient is φ = 2157465600.

The previous prime is 9122250713. The next prime is 9122250749. The reversal of 9122250720 is 270522219.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 195411 + ... + 237549.

It is an arithmetic number, because the mean of its divisors is an integer number (167253660).

Almost surely, 2^9122250720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9122250720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16056351360).

9122250720 is an abundant number, since it is smaller than the sum of its proper divisors (22990452000).

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

9122250720 is a wasteful number, since it uses less digits than its factorization.

9122250720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42209 (or 42201 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 9122250720 is about 95510.4743994082. The cubic root of 9122250720 is about 2089.4597109245.

Adding to 9122250720 its reverse (270522219), we get a palindrome (9392772939).

The spelling of 9122250720 in words is "nine billion, one hundred twenty-two million, two hundred fifty thousand, seven hundred twenty".