22021100222001 has 16 divisors (see below), whose sum is σ = 30723395281920. Its totient is φ = 14003325271760.

The previous prime is 22021100221997. The next prime is 22021100222041. The reversal of 22021100222001 is 10022200112022.

It is a cyclic number.

It is not a de Polignac number, because 22021100222001 - 2² = 22021100221997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22021100222041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 444468795 + ... + 444518336.

It is an arithmetic number, because the mean of its divisors is an integer number (1920212205120).

Almost surely, 2^{22021100222001} is an apocalyptic number.

It is an amenable number.

22021100222001 is a deficient number, since it is larger than the sum of its proper divisors (8702295059919).

22021100222001 is a wasteful number, since it uses less digits than its factorization.

22021100222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888987516.

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

Adding to 22021100222001 its reverse (10022200112022), we get a palindrome (32043300334023).

The spelling of 22021100222001 in words is "twenty-two trillion, twenty-one billion, one hundred million, two hundred twenty-two thousand, one".