225015452121 has 8 divisors (see below), whose sum is σ = 313064976960. Its totient is φ = 143488114352.

The previous prime is 225015452093. The next prime is 225015452161. The reversal of 225015452121 is 121254510522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225015452121 - 2¹³ = 225015443929 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (225015452161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1630546686 + ... + 1630546823.

It is an arithmetic number, because the mean of its divisors is an integer number (39133122120).

Almost surely, 2^225015452121 is an apocalyptic number.

It is an amenable number.

225015452121 is a deficient number, since it is larger than the sum of its proper divisors (88049524839).

225015452121 is a wasteful number, since it uses less digits than its factorization.

225015452121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3261093535.

The product of its (nonzero) digits is 8000, while the sum is 30.

Adding to 225015452121 its reverse (121254510522), we get a palindrome (346269962643).

The spelling of 225015452121 in words is "two hundred twenty-five billion, fifteen million, four hundred fifty-two thousand, one hundred twenty-one".