22111210201211 has 4 divisors (see below), whose sum is σ = 22202957961624. Its totient is φ = 22019462440800.

The previous prime is 22111210201153. The next prime is 22111210201229. The reversal of 22111210201211 is 11210201211122.

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 22111210201211 - 2¹⁸ = 22111209939067 is a prime.

It is a super-2 number, since 2×22111210201211² (a number of 27 digits) contains 22 as substring.

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 22111210201211.

It is not an unprimeable number, because it can be changed into a prime (22111210209211) 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, 45873879845 + ... + 45873880326.

It is an arithmetic number, because the mean of its divisors is an integer number (5550739490406).

Almost surely, 2^{22111210201211} is an apocalyptic number.

22111210201211 is a deficient number, since it is larger than the sum of its proper divisors (91747760413).

22111210201211 is an equidigital number, since it uses as much as digits as its factorization.

22111210201211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91747760412.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 22111210201211 its reverse (11210201211122), we get a palindrome (33321411412333).

The spelling of 22111210201211 in words is "twenty-two trillion, one hundred eleven billion, two hundred ten million, two hundred one thousand, two hundred eleven".