12002212111 has 4 divisors (see below), whose sum is σ = 12171257424. Its totient is φ = 11833166800.

The previous prime is 12002212081. The next prime is 12002212129. The reversal of 12002212111 is 11121220021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12002212111 - 2⁷ = 12002211983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12002212091 and 12002212100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002212151) 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, 84522550 + ... + 84522691.

It is an arithmetic number, because the mean of its divisors is an integer number (3042814356).

Almost surely, 2^12002212111 is an apocalyptic number.

12002212111 is a deficient number, since it is larger than the sum of its proper divisors (169045313).

12002212111 is an equidigital number, since it uses as much as digits as its factorization.

12002212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169045312.

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

Adding to 12002212111 its reverse (11121220021), we get a palindrome (23123432132).

The spelling of 12002212111 in words is "twelve billion, two million, two hundred twelve thousand, one hundred eleven".