22112002001 has 8 divisors (see below), whose sum is σ = 23594639520. Its totient is φ = 20661249312.

The previous prime is 22112001991. The next prime is 22112002021. The reversal of 22112002001 is 10020021122.

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 a de Polignac number, because none of the positive numbers 2^k-22112002001 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22112002021) 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, 7969775 + ... + 7972548.

It is an arithmetic number, because the mean of its divisors is an integer number (2949329940).

Almost surely, 2^22112002001 is an apocalyptic number.

It is an amenable number.

22112002001 is a deficient number, since it is larger than the sum of its proper divisors (1482637519).

22112002001 is a wasteful number, since it uses less digits than its factorization.

22112002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15942415.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22112002001 its reverse (10020021122), we get a palindrome (32132023123).

The spelling of 22112002001 in words is "twenty-two billion, one hundred twelve million, two thousand, one".