222211222001 has 8 divisors (see below), whose sum is σ = 238794150240. Its totient is φ = 206018480448.

The previous prime is 222211221979. The next prime is 222211222031. The reversal of 222211222001 is 100222112222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-222211222001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (222211222031) 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, 97545491 + ... + 97547768.

It is an arithmetic number, because the mean of its divisors is an integer number (29849268780).

Almost surely, 2^222211222001 is an apocalyptic number.

It is an amenable number.

222211222001 is a deficient number, since it is larger than the sum of its proper divisors (16582928239).

222211222001 is a wasteful number, since it uses less digits than its factorization.

222211222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195093343.

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

Adding to 222211222001 its reverse (100222112222), we get a palindrome (322433334223).

The spelling of 222211222001 in words is "two hundred twenty-two billion, two hundred eleven million, two hundred twenty-two thousand, one".