2121000002203 has 4 divisors (see below), whose sum is σ = 2122414947000. Its totient is φ = 2119585057408.

The previous prime is 2121000002137. The next prime is 2121000002207. The reversal of 2121000002203 is 3022000001212.

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

It is a cyclic number.

It is not a de Polignac number, because 2121000002203 - 2²¹ = 2120997905051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121000002207) 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, 707470150 + ... + 707473147.

It is an arithmetic number, because the mean of its divisors is an integer number (530603736750).

Almost surely, 2^{2121000002203} is an apocalyptic number.

2121000002203 is a deficient number, since it is larger than the sum of its proper divisors (1414944797).

2121000002203 is a wasteful number, since it uses less digits than its factorization.

2121000002203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414944796.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 2121000002203 its reverse (3022000001212), we get a palindrome (5143000003415).

Subtracting 2121000002203 from its reverse (3022000001212), we obtain a palindrome (900999999009).

The spelling of 2121000002203 in words is "two trillion, one hundred twenty-one billion, two thousand, two hundred three".