12002221022111 has 4 divisors (see below), whose sum is σ = 12633916865400. Its totient is φ = 11370525178824.

The previous prime is 12002221022089. The next prime is 12002221022137. The reversal of 12002221022111 is 11122012220021.

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 12002221022111 - 2⁶ = 12002221022047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12002221022111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002221022161) 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, 315847921616 + ... + 315847921653.

It is an arithmetic number, because the mean of its divisors is an integer number (3158479216350).

Almost surely, 2^{12002221022111} is an apocalyptic number.

12002221022111 is a deficient number, since it is larger than the sum of its proper divisors (631695843289).

12002221022111 is an equidigital number, since it uses as much as digits as its factorization.

12002221022111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631695843288.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12002221022111 its reverse (11122012220021), we get a palindrome (23124233242132).

The spelling of 12002221022111 in words is "twelve trillion, two billion, two hundred twenty-one million, twenty-two thousand, one hundred eleven".