15021200000 has 288 divisors, whose sum is σ = 40464714780. Its totient is φ = 5534720000.

The previous prime is 15021199997. The next prime is 15021200087. The reversal of 15021200000 is 212051.

15021200000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 634636864 + 14386563136 = 25192^2 + 119944^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 319599977 + ... + 319600023.

Almost surely, 2^15021200000 is an apocalyptic number.

15021200000 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 15021200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20232357390).

15021200000 is an abundant number, since it is smaller than the sum of its proper divisors (25443514780).

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

15021200000 is an frugal number, since it uses more digits than its factorization.

15021200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

Adding to 15021200000 its reverse (212051), we get a palindrome (15021412051).

The spelling of 15021200000 in words is "fifteen billion, twenty-one million, two hundred thousand".