22120111021211 has 8 divisors (see below), whose sum is σ = 25283006565120. Its totient is φ = 18957935398248.

The previous prime is 22120111021153. The next prime is 22120111021219. The reversal of 22120111021211 is 11212011102122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-22120111021211 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 22120111021211.

It is not an unprimeable number, because it can be changed into a prime (22120111021219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179914391 + ... + 180037296.

It is an arithmetic number, because the mean of its divisors is an integer number (3160375820640).

Almost surely, 2^{22120111021211} is an apocalyptic number.

22120111021211 is a deficient number, since it is larger than the sum of its proper divisors (3162895543909).

22120111021211 is an equidigital number, since it uses as much as digits as its factorization.

22120111021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359960473.

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

Adding to 22120111021211 its reverse (11212011102122), we get a palindrome (33332122123333).

It can be divided in two parts, 2212011102121 and 1, that added together give a palindrome (2212011102122).

The spelling of 22120111021211 in words is "twenty-two trillion, one hundred twenty billion, one hundred eleven million, twenty-one thousand, two hundred eleven".