222021111005 has 4 divisors (see below), whose sum is σ = 266425333212. Its totient is φ = 177616888800.

The previous prime is 222021110981. The next prime is 222021111023. The reversal of 222021111005 is 500111120222.

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

It can be written as a sum of positive squares in 2 ways, for example, as 155363682244 + 66657428761 = 394162^2 + 258181^2 .

It is not a de Polignac number, because 222021111005 - 2⁸ = 222021110749 is a prime.

It is a super-2 number, since 2×222021111005² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22202111096 + ... + 22202111105.

It is an arithmetic number, because the mean of its divisors is an integer number (66606333303).

Almost surely, 2^222021111005 is an apocalyptic number.

It is an amenable number.

222021111005 is a deficient number, since it is larger than the sum of its proper divisors (44404222207).

222021111005 is an equidigital number, since it uses as much as digits as its factorization.

222021111005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44404222206.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 222021111005 its reverse (500111120222), we get a palindrome (722132231227).

The spelling of 222021111005 in words is "two hundred twenty-two billion, twenty-one million, one hundred eleven thousand, five".