12220210231111 has 4 divisors (see below), whose sum is σ = 12220217418312. Its totient is φ = 12220203043912.

The previous prime is 12220210231081. The next prime is 12220210231129. The reversal of 12220210231111 is 11113201202221.

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 12220210231111 - 2¹¹ = 12220210229063 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 (12220210237111) 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, 547425 + ... + 4973941.

It is an arithmetic number, because the mean of its divisors is an integer number (3055054354578).

Almost surely, 2^{12220210231111} is an apocalyptic number.

12220210231111 is a deficient number, since it is larger than the sum of its proper divisors (7187201).

12220210231111 is an equidigital number, since it uses as much as digits as its factorization.

12220210231111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7187200.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 12220210231111 its reverse (11113201202221), we get a palindrome (23333411433332).

The spelling of 12220210231111 in words is "twelve trillion, two hundred twenty billion, two hundred ten million, two hundred thirty-one thousand, one hundred eleven".