12450215200 has 144 divisors (see below), whose sum is σ = 32328321480. Its totient is φ = 4665835520.

The previous prime is 12450215111. The next prime is 12450215203. The reversal of 12450215200 is 251205421.

It can be written as a sum of positive squares in 12 ways, for example, as 19749136 + 12430466064 = 4444^2 + 111492^2 .

It is a super-2 number, since 2×12450215200² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12450215203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3166836 + ... + 3170764.

Almost surely, 2^12450215200 is an apocalyptic number.

12450215200 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 12450215200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16164160740).

12450215200 is an abundant number, since it is smaller than the sum of its proper divisors (19878106280).

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

12450215200 is a wasteful number, since it uses less digits than its factorization.

12450215200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4199 (or 4186 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The spelling of 12450215200 in words is "twelve billion, four hundred fifty million, two hundred fifteen thousand, two hundred".