225121224201 has 16 divisors (see below), whose sum is σ = 325209322944. Its totient is φ = 137967588864.

The previous prime is 225121224197. The next prime is 225121224227. The reversal of 225121224201 is 102422121522.

It is a happy number.

It is not a de Polignac number, because 225121224201 - 2² = 225121224197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225121124201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51325036 + ... + 51329421.

It is an arithmetic number, because the mean of its divisors is an integer number (20325582684).

Almost surely, 2^225121224201 is an apocalyptic number.

It is an amenable number.

225121224201 is a deficient number, since it is larger than the sum of its proper divisors (100088098743).

225121224201 is a wasteful number, since it uses less digits than its factorization.

225121224201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102654520.

The product of its (nonzero) digits is 1280, while the sum is 24.

Adding to 225121224201 its reverse (102422121522), we get a palindrome (327543345723).

The spelling of 225121224201 in words is "two hundred twenty-five billion, one hundred twenty-one million, two hundred twenty-four thousand, two hundred one".