12122122221201 has 16 divisors (see below), whose sum is σ = 16193185968960. Its totient is φ = 8066237532480.

The previous prime is 12122122221199. The next prime is 12122122221203. The reversal of 12122122221201 is 10212222122121.

12122122221201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12122122221199) and next prime (12122122221203).

It is not a de Polignac number, because 12122122221201 - 2¹ = 12122122221199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12122122221203) 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, 67188130 + ... + 67368308.

It is an arithmetic number, because the mean of its divisors is an integer number (1012074123060).

Almost surely, 2^{12122122221201} is an apocalyptic number.

It is an amenable number.

12122122221201 is a deficient number, since it is larger than the sum of its proper divisors (4071063747759).

12122122221201 is a wasteful number, since it uses less digits than its factorization.

12122122221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222176.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 12122122221201 its reverse (10212222122121), we get a palindrome (22334344343322).

The spelling of 12122122221201 in words is "twelve trillion, one hundred twenty-two billion, one hundred twenty-two million, two hundred twenty-one thousand, two hundred one".