22222112001 has 8 divisors (see below), whose sum is σ = 29636592864. Its totient is φ = 14811186240.

The previous prime is 22222111997. The next prime is 22222112023. The reversal of 22222112001 is 10021122222.

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

It is not a de Polignac number, because 22222112001 - 2² = 22222111997 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22222112501) 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, 874155 + ... + 899216.

It is an arithmetic number, because the mean of its divisors is an integer number (3704574108).

Almost surely, 2^22222112001 is an apocalyptic number.

It is an amenable number.

22222112001 is a deficient number, since it is larger than the sum of its proper divisors (7414480863).

22222112001 is a wasteful number, since it uses less digits than its factorization.

22222112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777551.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22222112001 its reverse (10021122222), we get a palindrome (32243234223).

The spelling of 22222112001 in words is "twenty-two billion, two hundred twenty-two million, one hundred twelve thousand, one".