12013222111 has 8 divisors (see below), whose sum is σ = 13112397648. Its totient is φ = 10915224000.

The previous prime is 12013222037. The next prime is 12013222163. The reversal of 12013222111 is 11122231021.

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 12013222111 - 2²¹ = 12011124959 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 (12013222181) 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, 272950 + ... + 313891.

It is an arithmetic number, because the mean of its divisors is an integer number (1639049706).

Almost surely, 2^12013222111 is an apocalyptic number.

12013222111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12013222111 is a deficient number, since it is larger than the sum of its proper divisors (1099175537).

12013222111 is a wasteful number, since it uses less digits than its factorization.

12013222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588713.

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

Adding to 12013222111 its reverse (11122231021), we get a palindrome (23135453132).

It can be divided in two parts, 120 and 13222111, that added together give a palindrome (13222231).

The spelling of 12013222111 in words is "twelve billion, thirteen million, two hundred twenty-two thousand, one hundred eleven".