222320021111 has 4 divisors (see below), whose sum is σ = 222322469472. Its totient is φ = 222317572752.

The previous prime is 222320021101. The next prime is 222320021123. The reversal of 222320021111 is 111120023222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222320021111 - 2¹⁸ = 222319758967 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222320021111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222320021101) 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, 1082510 + ... + 1271403.

It is an arithmetic number, because the mean of its divisors is an integer number (55580617368).

Almost surely, 2^222320021111 is an apocalyptic number.

222320021111 is a deficient number, since it is larger than the sum of its proper divisors (2448361).

222320021111 is an equidigital number, since it uses as much as digits as its factorization.

222320021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2448360.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 222320021111 its reverse (111120023222), we get a palindrome (333440044333).

The spelling of 222320021111 in words is "two hundred twenty-two billion, three hundred twenty million, twenty-one thousand, one hundred eleven".