222222211001 has 8 divisors (see below), whose sum is σ = 254062709760. Its totient is φ = 190405329408.

The previous prime is 222222210997. The next prime is 222222211019. The reversal of 222222211001 is 100112222222.

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 222222211001 - 2² = 222222210997 is a prime.

It is a super-2 number, since 2×222222211001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222222211031) 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, 5884121 + ... + 5921766.

It is an arithmetic number, because the mean of its divisors is an integer number (31757838720).

Almost surely, 2^222222211001 is an apocalyptic number.

It is an amenable number.

222222211001 is a deficient number, since it is larger than the sum of its proper divisors (31840498759).

222222211001 is a wasteful number, since it uses less digits than its factorization.

222222211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11808583.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222222211001 its reverse (100112222222), we get a palindrome (322334433223).

The spelling of 222222211001 in words is "two hundred twenty-two billion, two hundred twenty-two million, two hundred eleven thousand, one".