12212106601 has 4 divisors (see below), whose sum is σ = 12212499600. Its totient is φ = 12211713604.

The previous prime is 12212106593. The next prime is 12212106631. The reversal of 12212106601 is 10660121221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10660121221 = 2543 ⋅4191947.

It is a cyclic number.

It is not a de Polignac number, because 12212106601 - 2³ = 12212106593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12212106631) 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, 145471 + ... + 213508.

It is an arithmetic number, because the mean of its divisors is an integer number (3053124900).

Almost surely, 2^12212106601 is an apocalyptic number.

It is an amenable number.

12212106601 is a deficient number, since it is larger than the sum of its proper divisors (392999).

12212106601 is an equidigital number, since it uses as much as digits as its factorization.

12212106601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392998.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 12212106601 its reverse (10660121221), we get a palindrome (22872227822).

The spelling of 12212106601 in words is "twelve billion, two hundred twelve million, one hundred six thousand, six hundred one".