12542212200 has 96 divisors (see below), whose sum is σ = 44435280960. Its totient is φ = 2866790400.

The previous prime is 12542212169. The next prime is 12542212217. The reversal of 12542212200 is 221224521.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1488921 + ... + 1497320.

It is an arithmetic number, because the mean of its divisors is an integer number (462867510).

Almost surely, 2^12542212200 is an apocalyptic number.

12542212200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12542212200 is an abundant number, since it is smaller than the sum of its proper divisors (31893068760).

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

12542212200 is a wasteful number, since it uses less digits than its factorization.

12542212200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2986267 (or 2986258 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 12542212200 its reverse (221224521), we get a palindrome (12763436721).

The spelling of 12542212200 in words is "twelve billion, five hundred forty-two million, two hundred twelve thousand, two hundred".