225052212 has 96 divisors (see below), whose sum is σ = 659441664. Its totient is φ = 58032000.

The previous prime is 225052193. The next prime is 225052231. The reversal of 225052212 is 212250522.

It is an interprime number because it is at equal distance from previous prime (225052193) and next prime (225052231).

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 138718 + ... + 140330.

It is an arithmetic number, because the mean of its divisors is an integer number (6869184).

Almost surely, 2^225052212 is an apocalyptic number.

225052212 is a gapful number since it is divisible by the number (22) 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 225052212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329720832).

225052212 is an abundant number, since it is smaller than the sum of its proper divisors (434389452).

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

225052212 is a wasteful number, since it uses less digits than its factorization.

225052212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1789 (or 1787 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 225052212 is about 15001.7402990453. The cubic root of 225052212 is about 608.2672424269.

The spelling of 225052212 in words is "two hundred twenty-five million, fifty-two thousand, two hundred twelve".