12012112022201 has 4 divisors (see below), whose sum is σ = 12122314884900. Its totient is φ = 11901909159504.

The previous prime is 12012112022191. The next prime is 12012112022203. The reversal of 12012112022201 is 10222021121021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3293586150976 + 8718525871225 = 1814824^2 + 2952715^2 .

It is a cyclic number.

It is not a de Polignac number, because 12012112022201 - 2⁶ = 12012112022137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12012112022201.

It is not an unprimeable number, because it can be changed into a prime (12012112022203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55101431186 + ... + 55101431403.

It is an arithmetic number, because the mean of its divisors is an integer number (3030578721225).

Almost surely, 2^{12012112022201} is an apocalyptic number.

It is an amenable number.

12012112022201 is a deficient number, since it is larger than the sum of its proper divisors (110202862699).

12012112022201 is a wasteful number, since it uses less digits than its factorization.

12012112022201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110202862698.

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

Adding to 12012112022201 its reverse (10222021121021), we get a palindrome (22234133143222).

The spelling of 12012112022201 in words is "twelve trillion, twelve billion, one hundred twelve million, twenty-two thousand, two hundred one".