255221230000 has 100 divisors (see below), whose sum is σ = 674090603208. Its totient is φ = 92807680000.

The previous prime is 255221229961. The next prime is 255221230063. The reversal of 255221230000 is 32122552.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1050097 + ... + 1270096.

Almost surely, 2^255221230000 is an apocalyptic number.

255221230000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255221230000 is an abundant number, since it is smaller than the sum of its proper divisors (418869373208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255221230000 is a wasteful number, since it uses less digits than its factorization.

255221230000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2320232 (or 2320211 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

Adding to 255221230000 its reverse (32122552), we get a palindrome (255253352552).

The spelling of 255221230000 in words is "two hundred fifty-five billion, two hundred twenty-one million, two hundred thirty thousand".