222021320329 has 4 divisors (see below), whose sum is σ = 222026618880. Its totient is φ = 222016021780.

The previous prime is 222021320321. The next prime is 222021320347. The reversal of 222021320329 is 923023120222.

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 not a de Polignac number, because 222021320329 - 2³ = 222021320321 is a prime.

It is a super-3 number, since 3×222021320329³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222021320297 and 222021320306.

It is not an unprimeable number, because it can be changed into a prime (222021320321) 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, 2585917 + ... + 2670394.

It is an arithmetic number, because the mean of its divisors is an integer number (55506654720).

Almost surely, 2^222021320329 is an apocalyptic number.

It is an amenable number.

222021320329 is a deficient number, since it is larger than the sum of its proper divisors (5298551).

222021320329 is an equidigital number, since it uses as much as digits as its factorization.

222021320329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5298550.

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 222021320329 in words is "two hundred twenty-two billion, twenty-one million, three hundred twenty thousand, three hundred twenty-nine".