225340543121 has 8 divisors (see below), whose sum is σ = 231401606304. Its totient is φ = 219316779360.

The previous prime is 225340543117. The next prime is 225340543123. The reversal of 225340543121 is 121345043522.

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 225340543121 - 2² = 225340543117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225340543123) 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, 9312611 + ... + 9336776.

It is an arithmetic number, because the mean of its divisors is an integer number (28925200788).

Almost surely, 2^225340543121 is an apocalyptic number.

It is an amenable number.

225340543121 is a deficient number, since it is larger than the sum of its proper divisors (6061063183).

225340543121 is a wasteful number, since it uses less digits than its factorization.

225340543121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18649711.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 225340543121 its reverse (121345043522), we get a palindrome (346685586643).

The spelling of 225340543121 in words is "two hundred twenty-five billion, three hundred forty million, five hundred forty-three thousand, one hundred twenty-one".