2213032231121 has 4 divisors (see below), whose sum is σ = 2267008627044. Its totient is φ = 2159055835200.

The previous prime is 2213032231117. The next prime is 2213032231133. The reversal of 2213032231121 is 1211322303122.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28001336896 + 2185030894225 = 167336^2 + 1478185^2 .

It is a cyclic number.

It is not a de Polignac number, because 2213032231121 - 2² = 2213032231117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2213032231181) 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, 26988197900 + ... + 26988197981.

It is an arithmetic number, because the mean of its divisors is an integer number (566752156761).

Almost surely, 2^{2213032231121} is an apocalyptic number.

It is an amenable number.

2213032231121 is a deficient number, since it is larger than the sum of its proper divisors (53976395923).

2213032231121 is an equidigital number, since it uses as much as digits as its factorization.

2213032231121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53976395922.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2213032231121 its reverse (1211322303122), we get a palindrome (3424354534243).

The spelling of 2213032231121 in words is "two trillion, two hundred thirteen billion, thirty-two million, two hundred thirty-one thousand, one hundred twenty-one".