2222212321 has 32 divisors (see below), whose sum is σ = 2696601600. Its totient is φ = 1790268480.

The previous prime is 2222212301. The next prime is 2222212327. The reversal of 2222212321 is 1232122222.

It is not a de Polignac number, because 2222212321 - 2⁹ = 2222211809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2222212327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2438856 + ... + 2439766.

It is an arithmetic number, because the mean of its divisors is an integer number (84268800).

Almost surely, 2^2222212321 is an apocalyptic number.

It is an amenable number.

2222212321 is a deficient number, since it is larger than the sum of its proper divisors (474389279).

2222212321 is a wasteful number, since it uses less digits than its factorization.

2222212321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189.

The product of its digits is 384, while the sum is 19.

The square root of 2222212321 is about 47140.3470606656. The cubic root of 2222212321 is about 1304.9539422880.

Adding to 2222212321 its reverse (1232122222), we get a palindrome (3454334543).

Subtracting from 2222212321 its reverse (1232122222), we obtain a palindrome (990090099).

It can be divided in two parts, 22222 and 12321, that added together give a palindrome (34543).

The spelling of 2222212321 in words is "two billion, two hundred twenty-two million, two hundred twelve thousand, three hundred twenty-one".