15522200000 has 84 divisors (see below), whose sum is σ = 38500363944. Its totient is φ = 6208800000.

The previous prime is 15522199997. The next prime is 15522200027. The reversal of 15522200000 is 222551.

It is a congruent number.

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, 161195 + ... + 238805.

It is an arithmetic number, because the mean of its divisors is an integer number (458337666).

Almost surely, 2^15522200000 is an apocalyptic number.

15522200000 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 15522200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19250181972).

15522200000 is an abundant number, since it is smaller than the sum of its proper divisors (22978163944).

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

15522200000 is an frugal number, since it uses more digits than its factorization.

15522200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77648 (or 77618 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

Adding to 15522200000 its reverse (222551), we get a palindrome (15522422551).

The spelling of 15522200000 in words is "fifteen billion, five hundred twenty-two million, two hundred thousand".