12002020111 has 16 divisors (see below), whose sum is σ = 13416680160. Its totient is φ = 10669639680.

The previous prime is 12002020097. The next prime is 12002020123. The reversal of 12002020111 is 11102020021.

It is a cyclic number.

It is not a de Polignac number, because 12002020111 - 2⁷ = 12002019983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002020181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53721 + ... + 163981.

It is an arithmetic number, because the mean of its divisors is an integer number (838542510).

Almost surely, 2^12002020111 is an apocalyptic number.

12002020111 is a deficient number, since it is larger than the sum of its proper divisors (1414660049).

12002020111 is a wasteful number, since it uses less digits than its factorization.

12002020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110634.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12002020111 its reverse (11102020021), we get a palindrome (23104040132).

The spelling of 12002020111 in words is "twelve billion, two million, twenty thousand, one hundred eleven".