22220110011221 has 8 divisors (see below), whose sum is σ = 22910420553504. Its totient is φ = 21537688732560.

The previous prime is 22220110011179. The next prime is 22220110011227. The reversal of 22220110011221 is 12211001102222.

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 22220110011221 - 2³⁴ = 22202930142037 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 22220110011221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220110011227) 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, 1972310186 + ... + 1972321451.

It is an arithmetic number, because the mean of its divisors is an integer number (2863802569188).

Almost surely, 2^{22220110011221} is an apocalyptic number.

It is an amenable number.

22220110011221 is a deficient number, since it is larger than the sum of its proper divisors (690310542283).

22220110011221 is a wasteful number, since it uses less digits than its factorization.

22220110011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3944631811.

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

Adding to 22220110011221 its reverse (12211001102222), we get a palindrome (34431111113443).

The spelling of 22220110011221 in words is "twenty-two trillion, two hundred twenty billion, one hundred ten million, eleven thousand, two hundred twenty-one".