22111020212111 has 8 divisors (see below), whose sum is σ = 22115725217040. Its totient is φ = 22106315480832.

The previous prime is 22111020212009. The next prime is 22111020212131. The reversal of 22111020212111 is 11121202011122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22111020212111 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 22111020212111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111020212131) 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, 263583071 + ... + 263666943.

It is an arithmetic number, because the mean of its divisors is an integer number (2764465652130).

Almost surely, 2^{22111020212111} is an apocalyptic number.

22111020212111 is a deficient number, since it is larger than the sum of its proper divisors (4705004929).

22111020212111 is an equidigital number, since it uses as much as digits as its factorization.

22111020212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136825.

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

Adding to 22111020212111 its reverse (11121202011122), we get a palindrome (33232222223233).

The spelling of 22111020212111 in words is "twenty-two trillion, one hundred eleven billion, twenty million, two hundred twelve thousand, one hundred eleven".