225994989210 has 128 divisors (see below), whose sum is σ = 555381598464. Its totient is φ = 58841303040.

The previous prime is 225994989203. The next prime is 225994989211. The reversal of 225994989210 is 12989499522.

It is not an unprimeable number, because it can be changed into a prime (225994989211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 105554740 + ... + 105556880.

It is an arithmetic number, because the mean of its divisors is an integer number (4338918738).

Almost surely, 2^225994989210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225994989210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277690799232).

225994989210 is an abundant number, since it is smaller than the sum of its proper divisors (329386609254).

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

225994989210 is a wasteful number, since it uses less digits than its factorization.

225994989210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2688.

The product of its (nonzero) digits is 8398080, while the sum is 60.

The spelling of 225994989210 in words is "two hundred twenty-five billion, nine hundred ninety-four million, nine hundred eighty-nine thousand, two hundred ten".