2122361250 has 80 divisors (see below), whose sum is σ = 5337541440. Its totient is φ = 562408000.

The previous prime is 2122361239. The next prime is 2122361257. The reversal of 2122361250 is 521632212.

It is a self number, because there is not a number n which added to its sum of digits gives 2122361250.

It is not an unprimeable number, because it can be changed into a prime (2122361257) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 624556 + ... + 627944.

It is an arithmetic number, because the mean of its divisors is an integer number (66719268).

Almost surely, 2^2122361250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2122361250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2668770720).

2122361250 is an abundant number, since it is smaller than the sum of its proper divisors (3215180190).

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

2122361250 is a wasteful number, since it uses less digits than its factorization.

2122361250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3581 (or 3566 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2122361250 is about 46069.0921334467. The cubic root of 2122361250 is about 1285.1084204521.

Adding to 2122361250 its reverse (521632212), we get a palindrome (2643993462).

The spelling of 2122361250 in words is "two billion, one hundred twenty-two million, three hundred sixty-one thousand, two hundred fifty".