212220103111 has 4 divisors (see below), whose sum is σ = 212221028592. Its totient is φ = 212219177632.

The previous prime is 212220103099. The next prime is 212220103133. The reversal of 212220103111 is 111301022212.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 212220103111 - 2⁵ = 212220103079 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 (212220103171) 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, 165846 + ... + 672268.

It is an arithmetic number, because the mean of its divisors is an integer number (53055257148).

Almost surely, 2^212220103111 is an apocalyptic number.

212220103111 is a deficient number, since it is larger than the sum of its proper divisors (925481).

212220103111 is an equidigital number, since it uses as much as digits as its factorization.

212220103111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925480.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 212220103111 its reverse (111301022212), we get a palindrome (323521125323).

The spelling of 212220103111 in words is "two hundred twelve billion, two hundred twenty million, one hundred three thousand, one hundred eleven".