11212220020111 has 8 divisors (see below), whose sum is σ = 12253472383824. Its totient is φ = 10174627595520.

The previous prime is 11212220020051. The next prime is 11212220020121. The reversal of 11212220020111 is 11102002221211.

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

It is a cyclic number.

It is not a de Polignac number, because 11212220020111 - 2²³ = 11212211631503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212220020121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 914978370 + ... + 914990623.

It is an arithmetic number, because the mean of its divisors is an integer number (1531684047978).

Almost surely, 2^{11212220020111} is an apocalyptic number.

11212220020111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11212220020111 is a deficient number, since it is larger than the sum of its proper divisors (1041252363713).

11212220020111 is a wasteful number, since it uses less digits than its factorization.

11212220020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829969561.

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

Adding to 11212220020111 its reverse (11102002221211), we get a palindrome (22314222241322).

The spelling of 11212220020111 in words is "eleven trillion, two hundred twelve billion, two hundred twenty million, twenty thousand, one hundred eleven".