2223213121 has 8 divisors (see below), whose sum is σ = 2255571360. Its totient is φ = 2191088928.

The previous prime is 2223213107. The next prime is 2223213193. The reversal of 2223213121 is 1213123222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2223213121 - 2¹⁹ = 2222688833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2223213521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39331 + ... + 77416.

It is an arithmetic number, because the mean of its divisors is an integer number (281946420).

Almost surely, 2^2223213121 is an apocalyptic number.

It is an amenable number.

2223213121 is a deficient number, since it is larger than the sum of its proper divisors (32358239).

2223213121 is a wasteful number, since it uses less digits than its factorization.

2223213121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117023.

The product of its digits is 288, while the sum is 19.

The square root of 2223213121 is about 47150.9609764213. The cubic root of 2223213121 is about 1305.1498134453.

Adding to 2223213121 its reverse (1213123222), we get a palindrome (3436336343).

It can be divided in two parts, 22232 and 13121, that added together give a palindrome (35353).

The spelling of 2223213121 in words is "two billion, two hundred twenty-three million, two hundred thirteen thousand, one hundred twenty-one".