12001210221101 has 4 divisors (see below), whose sum is σ = 12046842199392. Its totient is φ = 11955578242812.

The previous prime is 12001210221067. The next prime is 12001210221137. The reversal of 12001210221101 is 10112201210021.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12001210221101 is a prime.

It is a super-2 number, since 2×12001210221101² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001210221001) 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, 22815988751 + ... + 22815989276.

It is an arithmetic number, because the mean of its divisors is an integer number (3011710549848).

Almost surely, 2^{12001210221101} is an apocalyptic number.

It is an amenable number.

12001210221101 is a deficient number, since it is larger than the sum of its proper divisors (45631978291).

12001210221101 is an equidigital number, since it uses as much as digits as its factorization.

12001210221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45631978290.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12001210221101 its reverse (10112201210021), we get a palindrome (22113411431122).

The spelling of 12001210221101 in words is "twelve trillion, one billion, two hundred ten million, two hundred twenty-one thousand, one hundred one".