12012001011021 has 32 divisors (see below), whose sum is σ = 17759599312896. Its totient is φ = 7160183928000.

The previous prime is 12012001010981. The next prime is 12012001011067. The reversal of 12012001011021 is 12011010021021.

12012001011021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12012001011021 - 2¹³ = 12012001002829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12012001010988 and 12012001011006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012001011421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31598340 + ... + 31976226.

It is an arithmetic number, because the mean of its divisors is an integer number (554987478528).

Almost surely, 2^{12012001011021} is an apocalyptic number.

12012001011021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12012001011021 is a deficient number, since it is larger than the sum of its proper divisors (5747598301875).

12012001011021 is a wasteful number, since it uses less digits than its factorization.

12012001011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393753.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12012001011021 its reverse (12011010021021), we get a palindrome (24023011032042).

The spelling of 12012001011021 in words is "twelve trillion, twelve billion, one million, eleven thousand, twenty-one".