2222001321 has 8 divisors (see below), whose sum is σ = 3000170880. Its totient is φ = 1462582992.

The previous prime is 2222001317. The next prime is 2222001329. The reversal of 2222001321 is 1231002222.

It is a happy number.

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

It is not a de Polignac number, because 2222001321 - 2² = 2222001317 is a prime.

It is a super-3 number, since 3×2222001321³ (a number of 29 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2222001321.

It is not an unprimeable number, because it can be changed into a prime (2222001329) 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, 4687530 + ... + 4688003.

It is an arithmetic number, because the mean of its divisors is an integer number (375021360).

Almost surely, 2^2222001321 is an apocalyptic number.

It is an amenable number.

2222001321 is a deficient number, since it is larger than the sum of its proper divisors (778169559).

2222001321 is an equidigital number, since it uses as much as digits as its factorization.

2222001321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9375615.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2222001321 is about 47138.1090095901. The cubic root of 2222001321 is about 1304.9126390044.

Adding to 2222001321 its reverse (1231002222), we get a palindrome (3453003543).

Subtracting from 2222001321 its reverse (1231002222), we obtain a palindrome (990999099).

The spelling of 2222001321 in words is "two billion, two hundred twenty-two million, one thousand, three hundred twenty-one".