2251722200 has 288 divisors, whose sum is σ = 6709570560. Its totient is φ = 687398400.

The previous prime is 2251722181. The next prime is 2251722203. The reversal of 2251722200 is 22271522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251722203) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7334447 + ... + 7334753.

It is an arithmetic number, because the mean of its divisors is an integer number (23297120).

Almost surely, 2^2251722200 is an apocalyptic number.

2251722200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2251722200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3354785280).

2251722200 is an abundant number, since it is smaller than the sum of its proper divisors (4457848360).

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

2251722200 is a wasteful number, since it uses less digits than its factorization.

2251722200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387 (or 365 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 2251722200 is about 47452.3150120202. The cubic root of 2251722200 is about 1310.7049407901.

Adding to 2251722200 its reverse (22271522), we get a palindrome (2273993722).

The spelling of 2251722200 in words is "two billion, two hundred fifty-one million, seven hundred twenty-two thousand, two hundred".