2212243421 has 8 divisors (see below), whose sum is σ = 2284149504. Its totient is φ = 2140371360.

The previous prime is 2212243417. The next prime is 2212243427. The reversal of 2212243421 is 1243422122.

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 2212243421 - 2² = 2212243417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212243427) 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, 232265 + ... + 241601.

It is an arithmetic number, because the mean of its divisors is an integer number (285518688).

Almost surely, 2^2212243421 is an apocalyptic number.

It is an amenable number.

2212243421 is a deficient number, since it is larger than the sum of its proper divisors (71906083).

2212243421 is an equidigital number, since it uses as much as digits as its factorization.

2212243421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17011.

The product of its digits is 1536, while the sum is 23.

The square root of 2212243421 is about 47034.4918224913. The cubic root of 2212243421 is about 1302.9996650584. Note that the first 3 decimals are identical.

Adding to 2212243421 its reverse (1243422122), we get a palindrome (3455665543).

The spelling of 2212243421 in words is "two billion, two hundred twelve million, two hundred forty-three thousand, four hundred twenty-one".