20120332200 has 48 divisors (see below), whose sum is σ = 62373031680. Its totient is φ = 5365421760.

The previous prime is 20120332189. The next prime is 20120332213. The reversal of 20120332200 is 223302102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20120332200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16766344 + ... + 16767543.

It is an arithmetic number, because the mean of its divisors is an integer number (1299438160).

Almost surely, 2^20120332200 is an apocalyptic number.

20120332200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20120332200 is an abundant number, since it is smaller than the sum of its proper divisors (42252699480).

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

20120332200 is a wasteful number, since it uses less digits than its factorization.

20120332200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33533906 (or 33533897 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20120332200 its reverse (223302102), we get a palindrome (20343634302).

The spelling of 20120332200 in words is "twenty billion, one hundred twenty million, three hundred thirty-two thousand, two hundred".