2203222132121 has 4 divisors (see below), whose sum is σ = 2203225272192. Its totient is φ = 2203218992052.

The previous prime is 2203222132087. The next prime is 2203222132141. The reversal of 2203222132121 is 1212312223022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2203222132121 - 2¹⁸ = 2203221869977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2203222132141) 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, 17540 + ... + 2099226.

It is an arithmetic number, because the mean of its divisors is an integer number (550806318048).

Almost surely, 2^{2203222132121} is an apocalyptic number.

It is an amenable number.

2203222132121 is a deficient number, since it is larger than the sum of its proper divisors (3140071).

2203222132121 is a wasteful number, since it uses less digits than its factorization.

2203222132121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3140070.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 2203222132121 its reverse (1212312223022), we get a palindrome (3415534355143).

Subtracting from 2203222132121 its reverse (1212312223022), we obtain a palindrome (990909909099).

The spelling of 2203222132121 in words is "two trillion, two hundred three billion, two hundred twenty-two million, one hundred thirty-two thousand, one hundred twenty-one".