12012102312021 has 64 divisors (see below), whose sum is σ = 21501857280000. Its totient is φ = 6474395313216.

The previous prime is 12012102311933. The next prime is 12012102312031. The reversal of 12012102312021 is 12021320121021.

12012102312021 is a `hidden beast` number, since 1 + 20 + 1 + 210 + 231 + 202 + 1 = 666.

It is not a de Polignac number, because 12012102312021 - 2¹⁵ = 12012102279253 is a prime.

It is a super-2 number, since 2×12012102312021² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12012102311985 and 12012102312003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012102312031) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6481281 + ... + 8125958.

It is an arithmetic number, because the mean of its divisors is an integer number (335966520000).

Almost surely, 2^{12012102312021} is an apocalyptic number.

It is an amenable number.

12012102312021 is a deficient number, since it is larger than the sum of its proper divisors (9489754967979).

12012102312021 is a wasteful number, since it uses less digits than its factorization.

12012102312021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14607503 (or 14607497 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 12012102312021 its reverse (12021320121021), we get a palindrome (24033422433042).

The spelling of 12012102312021 in words is "twelve trillion, twelve billion, one hundred two million, three hundred twelve thousand, twenty-one".