225412121444 has 12 divisors (see below), whose sum is σ = 394476050304. Its totient is φ = 112704678504.

The previous prime is 225412121413. The next prime is 225412121449. The reversal of 225412121444 is 444121214522.

It is a self number, because there is not a number n which added to its sum of digits gives 225412121444.

It is not an unprimeable number, because it can be changed into a prime (225412121449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79457 + ... + 676119.

It is an arithmetic number, because the mean of its divisors is an integer number (32873004192).

Almost surely, 2^225412121444 is an apocalyptic number.

It is an amenable number.

225412121444 is a deficient number, since it is larger than the sum of its proper divisors (169063928860).

225412121444 is a wasteful number, since it uses less digits than its factorization.

225412121444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691114 (or 691112 counting only the distinct ones).

The product of its digits is 20480, while the sum is 32.

Adding to 225412121444 its reverse (444121214522), we get a palindrome (669533335966).

The spelling of 225412121444 in words is "two hundred twenty-five billion, four hundred twelve million, one hundred twenty-one thousand, four hundred forty-four".