22112331211211 has 4 divisors (see below), whose sum is σ = 22112728749024. Its totient is φ = 22111933673400.

The previous prime is 22112331211183. The next prime is 22112331211219. The reversal of 22112331211211 is 11211213321122.

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 22112331211211 - 2⁶ = 22112331211147 is a prime.

It is a super-2 number, since 2×22112331211211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22112331211219) 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, 198685460 + ... + 198796721.

It is an arithmetic number, because the mean of its divisors is an integer number (5528182187256).

Almost surely, 2^{22112331211211} is an apocalyptic number.

22112331211211 is a deficient number, since it is larger than the sum of its proper divisors (397537813).

22112331211211 is an equidigital number, since it uses as much as digits as its factorization.

22112331211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397537812.

The product of its digits is 288, while the sum is 23.

Adding to 22112331211211 its reverse (11211213321122), we get a palindrome (33323544532333).

The spelling of 22112331211211 in words is "twenty-two trillion, one hundred twelve billion, three hundred thirty-one million, two hundred eleven thousand, two hundred eleven".