12010002111 has 12 divisors (see below), whose sum is σ = 17990291592. Its totient is φ = 8006667912.

The previous prime is 12010002107. The next prime is 12010002119. The reversal of 12010002111 is 11120001021.

It is a happy number.

It is not a de Polignac number, because 12010002111 - 2² = 12010002107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 12010002093 and 12010002102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010002119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24711696 + ... + 24712181.

It is an arithmetic number, because the mean of its divisors is an integer number (1499190966).

Almost surely, 2^12010002111 is an apocalyptic number.

12010002111 is a deficient number, since it is larger than the sum of its proper divisors (5980289481).

12010002111 is an frugal number, since it uses more digits than its factorization.

12010002111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49423892 (or 49423880 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 12010002111 its reverse (11120001021), we get a palindrome (23130003132).

The spelling of 12010002111 in words is "twelve billion, ten million, two thousand, one hundred eleven".