22201211221021 has 8 divisors (see below), whose sum is σ = 25373138088320. Its totient is φ = 19029365669808.

The previous prime is 22201211220989. The next prime is 22201211221039. The reversal of 22201211221021 is 12012211210222.

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 22201211221021 - 2⁵ = 22201211220989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22201211221021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201211221621) 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 7 ways as a sum of consecutive naturals, for example, 19742841 + ... + 20837038.

It is an arithmetic number, because the mean of its divisors is an integer number (3171642261040).

Almost surely, 2^{22201211221021} is an apocalyptic number.

It is an amenable number.

22201211221021 is a deficient number, since it is larger than the sum of its proper divisors (3171926867299).

22201211221021 is an equidigital number, since it uses as much as digits as its factorization.

22201211221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40658043.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22201211221021 its reverse (12012211210222), we get a palindrome (34213422431243).

The spelling of 22201211221021 in words is "twenty-two trillion, two hundred one billion, two hundred eleven million, two hundred twenty-one thousand, twenty-one".