12021002011 has 8 divisors (see below), whose sum is σ = 12359648448. Its totient is φ = 11684520000.

The previous prime is 12021001999. The next prime is 12021002089. The reversal of 12021002011 is 11020012021.

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 12021002011 - 2¹⁵ = 12020969243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12021092011) 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, 529840 + ... + 552061.

It is an arithmetic number, because the mean of its divisors is an integer number (1544956056).

Almost surely, 2^12021002011 is an apocalyptic number.

12021002011 is a deficient number, since it is larger than the sum of its proper divisors (338646437).

12021002011 is a wasteful number, since it uses less digits than its factorization.

12021002011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082213.

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

Adding to 12021002011 its reverse (11020012021), we get a palindrome (23041014032).

The spelling of 12021002011 in words is "twelve billion, twenty-one million, two thousand, eleven".