222112222001 has 8 divisors (see below), whose sum is σ = 223132127904. Its totient is φ = 221093388000.

The previous prime is 222112221959. The next prime is 222112222009. The reversal of 222112222001 is 100222211222.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 222112222001 - 2¹⁸ = 222111959857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222112222009) 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, 148886 + ... + 682928.

It is an arithmetic number, because the mean of its divisors is an integer number (27891515988).

Almost surely, 2^222112222001 is an apocalyptic number.

It is an amenable number.

222112222001 is a deficient number, since it is larger than the sum of its proper divisors (1019905903).

222112222001 is a wasteful number, since it uses less digits than its factorization.

222112222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535951.

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

Adding to 222112222001 its reverse (100222211222), we get a palindrome (322334433223).

The spelling of 222112222001 in words is "two hundred twenty-two billion, one hundred twelve million, two hundred twenty-two thousand, one".