12220210111 has 4 divisors (see below), whose sum is σ = 12220889824. Its totient is φ = 12219530400.

The previous prime is 12220210091. The next prime is 12220210133. The reversal of 12220210111 is 11101202221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11101202221 = 2459 ⋅4514519.

It is a cyclic number.

It is not a de Polignac number, because 12220210111 - 2⁷ = 12220209983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12220210091 and 12220210100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220210711) 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, 312135 + ... + 349096.

It is an arithmetic number, because the mean of its divisors is an integer number (3055222456).

Almost surely, 2^12220210111 is an apocalyptic number.

12220210111 is a deficient number, since it is larger than the sum of its proper divisors (679713).

12220210111 is an equidigital number, since it uses as much as digits as its factorization.

12220210111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679712.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12220210111 its reverse (11101202221), we get a palindrome (23321412332).

The spelling of 12220210111 in words is "twelve billion, two hundred twenty million, two hundred ten thousand, one hundred eleven".