15412221200 has 60 divisors (see below), whose sum is σ = 37815734400. Its totient is φ = 6033713280.

The previous prime is 15412221191. The next prime is 15412221329. The reversal of 15412221200 is 212221451.

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 11 ways as a sum of consecutive naturals, for example, 391100 + ... + 428699.

It is an arithmetic number, because the mean of its divisors is an integer number (630262240).

Almost surely, 2^15412221200 is an apocalyptic number.

15412221200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15412221200 is an abundant number, since it is smaller than the sum of its proper divisors (22403513200).

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

15412221200 is a wasteful number, since it uses less digits than its factorization.

15412221200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819864 (or 819853 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 15412221200 its reverse (212221451), we get a palindrome (15624442651).

The spelling of 15412221200 in words is "fifteen billion, four hundred twelve million, two hundred twenty-one thousand, two hundred".