22111102001211 has 4 divisors (see below), whose sum is σ = 29481469334952. Its totient is φ = 14740734667472.

The previous prime is 22111102001189. The next prime is 22111102001213. The reversal of 22111102001211 is 11210020111122.

It is a happy number.

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 22111102001211 - 2¹⁰ = 22111102000187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22111102001213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3685183666866 + ... + 3685183666871.

It is an arithmetic number, because the mean of its divisors is an integer number (7370367333738).

Almost surely, 2^{22111102001211} is an apocalyptic number.

22111102001211 is a deficient number, since it is larger than the sum of its proper divisors (7370367333741).

22111102001211 is an equidigital number, since it uses as much as digits as its factorization.

22111102001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7370367333740.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 22111102001211 its reverse (11210020111122), we get a palindrome (33321122112333).

The spelling of 22111102001211 in words is "twenty-two trillion, one hundred eleven billion, one hundred two million, one thousand, two hundred eleven".