12010021021111 has 8 divisors (see below), whose sum is σ = 12041899030800. Its totient is φ = 11978165810688.

The previous prime is 12010021021093. The next prime is 12010021021147. The reversal of 12010021021111 is 11112012001021.

It is a happy number.

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 12010021021111 - 2¹⁷ = 12010020890039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12010021021091 and 12010021021100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010021021151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4644616 + ... + 6752221.

It is an arithmetic number, because the mean of its divisors is an integer number (1505237378850).

Almost surely, 2^{12010021021111} is an apocalyptic number.

12010021021111 is a deficient number, since it is larger than the sum of its proper divisors (31878009689).

12010021021111 is a wasteful number, since it uses less digits than its factorization.

12010021021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11399633.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12010021021111 its reverse (11112012001021), we get a palindrome (23122033022132).

The spelling of 12010021021111 in words is "twelve trillion, ten billion, twenty-one million, twenty-one thousand, one hundred eleven".