12021033011 has 16 divisors (see below), whose sum is σ = 13031020800. Its totient is φ = 11023357728.

The previous prime is 12021032983. The next prime is 12021033019. The reversal of 12021033011 is 11033012021.

It is a cyclic number.

It is not a de Polignac number, because 12021033011 - 2¹⁰ = 12021031987 is a prime.

It is a super-2 number, since 2×12021033011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12021033019) 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, 3179120 + ... + 3182898.

It is an arithmetic number, because the mean of its divisors is an integer number (814438800).

Almost surely, 2^12021033011 is an apocalyptic number.

12021033011 is a deficient number, since it is larger than the sum of its proper divisors (1009987789).

12021033011 is a wasteful number, since it uses less digits than its factorization.

12021033011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5338.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 12021033011 its reverse (11033012021), we get a palindrome (23054045032).

The spelling of 12021033011 in words is "twelve billion, twenty-one million, thirty-three thousand, eleven".