12012222110021 has 8 divisors (see below), whose sum is σ = 13854201123840. Its totient is φ = 10201729917168.

The previous prime is 12012222109997. The next prime is 12012222110087. The reversal of 12012222110021 is 12001122221021.

12012222110021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12012222110021 - 2⁶ = 12012222109957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012222116021) 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, 7871704421 + ... + 7871705946.

It is an arithmetic number, because the mean of its divisors is an integer number (1731775140480).

Almost surely, 2^{12012222110021} is an apocalyptic number.

It is an amenable number.

12012222110021 is a deficient number, since it is larger than the sum of its proper divisors (1841979013819).

12012222110021 is a wasteful number, since it uses less digits than its factorization.

12012222110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15743410483.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12012222110021 its reverse (12001122221021), we get a palindrome (24013344331042).

The spelling of 12012222110021 in words is "twelve trillion, twelve billion, two hundred twenty-two million, one hundred ten thousand, twenty-one".