12220012021111 has 4 divisors (see below), whose sum is σ = 12270717465424. Its totient is φ = 12169306576800.

The previous prime is 12220012021103. The next prime is 12220012021153. The reversal of 12220012021111 is 11112021002221.

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 12220012021111 - 2³ = 12220012021103 is a prime.

It is a super-3 number, since 3×12220012021111³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220012021171) 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, 25352721795 + ... + 25352722276.

It is an arithmetic number, because the mean of its divisors is an integer number (3067679366356).

Almost surely, 2^{12220012021111} is an apocalyptic number.

12220012021111 is a deficient number, since it is larger than the sum of its proper divisors (50705444313).

12220012021111 is an equidigital number, since it uses as much as digits as its factorization.

12220012021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50705444312.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12220012021111 its reverse (11112021002221), we get a palindrome (23332033023332).

The spelling of 12220012021111 in words is "twelve trillion, two hundred twenty billion, twelve million, twenty-one thousand, one hundred eleven".