225401421332 has 12 divisors (see below), whose sum is σ = 398071318260. Its totient is φ = 111666758976.

The previous prime is 225401421263. The next prime is 225401421379. The reversal of 225401421332 is 233124104522.

It can be written as a sum of positive squares in 2 ways, for example, as 137147271556 + 88254149776 = 370334^2 + 297076^2 .

It is a junction number, because it is equal to n+sod(n) for n = 225401421295 and 225401421304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258487433 + ... + 258488304.

It is an arithmetic number, because the mean of its divisors is an integer number (33172609855).

Almost surely, 2^225401421332 is an apocalyptic number.

It is an amenable number.

225401421332 is a deficient number, since it is larger than the sum of its proper divisors (172669896928).

225401421332 is a wasteful number, since it uses less digits than its factorization.

225401421332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516975850 (or 516975848 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 225401421332 its reverse (233124104522), we get a palindrome (458525525854).

The spelling of 225401421332 in words is "two hundred twenty-five billion, four hundred one million, four hundred twenty-one thousand, three hundred thirty-two".