22111021222001 has 16 divisors (see below), whose sum is σ = 22340605908096. Its totient is φ = 21882056292096.

The previous prime is 22111021221923. The next prime is 22111021222013. The reversal of 22111021222001 is 10022212011122.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22111021222001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22111021221001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204634076 + ... + 204742098.

It is an arithmetic number, because the mean of its divisors is an integer number (1396287869256).

Almost surely, 2^{22111021222001} is an apocalyptic number.

It is an amenable number.

22111021222001 is a deficient number, since it is larger than the sum of its proper divisors (229584686095).

22111021222001 is a wasteful number, since it uses less digits than its factorization.

22111021222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110872.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22111021222001 its reverse (10022212011122), we get a palindrome (32133233233123).

The spelling of 22111021222001 in words is "twenty-two trillion, one hundred eleven billion, twenty-one million, two hundred twenty-two thousand, one".