12021110011 has 8 divisors (see below), whose sum is σ = 12607445664. Its totient is φ = 11440080960.

The previous prime is 12021109987. The next prime is 12021110027. The reversal of 12021110011 is 11001112021.

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

It is a cyclic number.

It is not a de Polignac number, because 12021110011 - 2⁷ = 12021109883 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 12021110011.

It is not an unprimeable number, because it can be changed into a prime (12021110081) 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, 1322010 + ... + 1331071.

It is an arithmetic number, because the mean of its divisors is an integer number (1575930708).

Almost surely, 2^12021110011 is an apocalyptic number.

12021110011 is a deficient number, since it is larger than the sum of its proper divisors (586335653).

12021110011 is a wasteful number, since it uses less digits than its factorization.

12021110011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2653301.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 12021110011 its reverse (11001112021), we get a palindrome (23022222032).

It can be divided in two parts, 12021 and 110011, that multiplied together give a palindrome (1322442231).

The spelling of 12021110011 in words is "twelve billion, twenty-one million, one hundred ten thousand, eleven".