22011201011221 has 8 divisors (see below), whose sum is σ = 22742372985984. Its totient is φ = 21291727788240.

The previous prime is 22011201011213. The next prime is 22011201011249. The reversal of 22011201011221 is 12211010211022.

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 22011201011221 - 2³ = 22011201011213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22011201011195 and 22011201011204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011201011321) 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 7 ways as a sum of consecutive naturals, for example, 2924684121 + ... + 2924691646.

It is an arithmetic number, because the mean of its divisors is an integer number (2842796623248).

Almost surely, 2^{22011201011221} is an apocalyptic number.

It is an amenable number.

22011201011221 is a deficient number, since it is larger than the sum of its proper divisors (731171974763).

22011201011221 is an equidigital number, since it uses as much as digits as its factorization.

22011201011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5849375891.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22011201011221 its reverse (12211010211022), we get a palindrome (34222211222243).

The spelling of 22011201011221 in words is "twenty-two trillion, eleven billion, two hundred one million, eleven thousand, two hundred twenty-one".