12542208900 has 144 divisors (see below), whose sum is σ = 39152577408. Its totient is φ = 3081600000.

The previous prime is 12542208851. The next prime is 12542208907. The reversal of 12542208900 is 980224521.

It is not an unprimeable number, because it can be changed into a prime (12542208907) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2341225 + ... + 2346575.

Almost surely, 2^12542208900 is an apocalyptic number.

12542208900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12542208900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19576288704).

12542208900 is an abundant number, since it is smaller than the sum of its proper divisors (26610368508).

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

12542208900 is a wasteful number, since it uses less digits than its factorization.

12542208900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5982 (or 5975 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The spelling of 12542208900 in words is "twelve billion, five hundred forty-two million, two hundred eight thousand, nine hundred".