12020002111 has 8 divisors (see below), whose sum is σ = 13027069664. Its totient is φ = 11024713440.

The previous prime is 12020002087. The next prime is 12020002117. The reversal of 12020002111 is 11120002021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12020002111 - 2¹⁵ = 12019969343 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 (12020002117) 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, 2942595 + ... + 2946676.

It is an arithmetic number, because the mean of its divisors is an integer number (1628383708).

Almost surely, 2^12020002111 is an apocalyptic number.

12020002111 is a deficient number, since it is larger than the sum of its proper divisors (1007067553).

12020002111 is a wasteful number, since it uses less digits than its factorization.

12020002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5889441.

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

Adding to 12020002111 its reverse (11120002021), we get a palindrome (23140004132).

The spelling of 12020002111 in words is "twelve billion, twenty million, two thousand, one hundred eleven".