12012221101329 has 16 divisors (see below), whose sum is σ = 17796565652800. Its totient is φ = 8007840258048.

The previous prime is 12012221101253. The next prime is 12012221101379. The reversal of 12012221101329 is 92310112221021.

12012221101329 is a `hidden beast` number, since 1 + 2 + 0 + 1 + 222 + 110 + 1 + 329 = 666.

12012221101329 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 12012221101329 - 2¹⁹ = 12012220577041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12012221101379) 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, 7813639 + ... + 9223740.

It is an arithmetic number, because the mean of its divisors is an integer number (1112285353300).

Almost surely, 2^{12012221101329} is an apocalyptic number.

It is an amenable number.

12012221101329 is a deficient number, since it is larger than the sum of its proper divisors (5784344551471).

12012221101329 is a wasteful number, since it uses less digits than its factorization.

12012221101329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17063501 (or 17063495 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The spelling of 12012221101329 in words is "twelve trillion, twelve billion, two hundred twenty-one million, one hundred one thousand, three hundred twenty-nine".