225404201000 has 128 divisors (see below), whose sum is σ = 605679984000. Its totient is φ = 77651136000.

The previous prime is 225404200991. The next prime is 225404201027. The reversal of 225404201000 is 102404522.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 330245 + ... + 748244.

It is an arithmetic number, because the mean of its divisors is an integer number (4731874875).

Almost surely, 2^225404201000 is an apocalyptic number.

225404201000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225404201000 is an abundant number, since it is smaller than the sum of its proper divisors (380275783000).

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

225404201000 is a wasteful number, since it uses less digits than its factorization.

225404201000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078540 (or 1078526 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 225404201000 its reverse (102404522), we get a palindrome (225506605522).

The spelling of 225404201000 in words is "two hundred twenty-five billion, four hundred four million, two hundred one thousand".