2121200192 has 14 divisors (see below), whose sum is σ = 4209256758. Its totient is φ = 1060600064.

The previous prime is 2121200183. The next prime is 2121200209. The reversal of 2121200192 is 2910021212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1231729216 + 889470976 = 35096^2 + 29824^2 .

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 as a sum of consecutive naturals, namely, 16571813 + ... + 16571940.

It is an arithmetic number, because the mean of its divisors is an integer number (300661197).

Almost surely, 2^2121200192 is an apocalyptic number.

It is an amenable number.

2121200192 is a deficient number, since it is larger than the sum of its proper divisors (2088056566).

2121200192 is an equidigital number, since it uses as much as digits as its factorization.

2121200192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33143765 (or 33143755 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 2121200192 is about 46056.4891410537. The cubic root of 2121200192 is about 1284.8740340925.

The spelling of 2121200192 in words is "two billion, one hundred twenty-one million, two hundred thousand, one hundred ninety-two".