222022211321 has 4 divisors (see below), whose sum is σ = 222184628352. Its totient is φ = 221859794292.

The previous prime is 222022211287. The next prime is 222022211347. The reversal of 222022211321 is 123112220222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222022211321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222022211293 and 222022211302.

It is not an unprimeable number, because it can be changed into a prime (222022211351) 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, 81206465 + ... + 81209198.

It is an arithmetic number, because the mean of its divisors is an integer number (55546157088).

Almost surely, 2^222022211321 is an apocalyptic number.

It is an amenable number.

222022211321 is a deficient number, since it is larger than the sum of its proper divisors (162417031).

222022211321 is a wasteful number, since it uses less digits than its factorization.

222022211321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162417030.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 222022211321 its reverse (123112220222), we get a palindrome (345134431543).

The spelling of 222022211321 in words is "two hundred twenty-two billion, twenty-two million, two hundred eleven thousand, three hundred twenty-one".