22100221201111 has 4 divisors (see below), whose sum is σ = 23061100383792. Its totient is φ = 21139342018432.

The previous prime is 22100221201099. The next prime is 22100221201129. The reversal of 22100221201111 is 11110212200122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22100221201111 - 2⁹ = 22100221200599 is a prime.

It is a super-2 number, since 2×22100221201111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22100225201111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480439591306 + ... + 480439591351.

It is an arithmetic number, because the mean of its divisors is an integer number (5765275095948).

Almost surely, 2^{22100221201111} is an apocalyptic number.

22100221201111 is a deficient number, since it is larger than the sum of its proper divisors (960879182681).

22100221201111 is an equidigital number, since it uses as much as digits as its factorization.

22100221201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960879182680.

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

Adding to 22100221201111 its reverse (11110212200122), we get a palindrome (33210433401233).

The spelling of 22100221201111 in words is "twenty-two trillion, one hundred billion, two hundred twenty-one million, two hundred one thousand, one hundred eleven".