2121199203 has 4 divisors (see below), whose sum is σ = 2828265608. Its totient is φ = 1414132800.

The previous prime is 2121199183. The next prime is 2121199207. The reversal of 2121199203 is 3029911212.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2121199203 - 2⁹ = 2121198691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121199207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353533198 + ... + 353533203.

It is an arithmetic number, because the mean of its divisors is an integer number (707066402).

Almost surely, 2^2121199203 is an apocalyptic number.

2121199203 is a deficient number, since it is larger than the sum of its proper divisors (707066405).

2121199203 is an equidigital number, since it uses as much as digits as its factorization.

2121199203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707066404.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 2121199203 is about 46056.4784042376. The cubic root of 2121199203 is about 1284.8738344036.

The spelling of 2121199203 in words is "two billion, one hundred twenty-one million, one hundred ninety-nine thousand, two hundred three".