12211001001201 has 4 divisors (see below), whose sum is σ = 16281334668272. Its totient is φ = 8140667334132.

The previous prime is 12211001001187. The next prime is 12211001001223. The reversal of 12211001001201 is 10210010011221.

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 not a de Polignac number, because 12211001001201 - 2²⁷ = 12210866783473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12211001021201) 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, 2035166833531 + ... + 2035166833536.

It is an arithmetic number, because the mean of its divisors is an integer number (4070333667068).

Almost surely, 2^{12211001001201} is an apocalyptic number.

It is an amenable number.

12211001001201 is a deficient number, since it is larger than the sum of its proper divisors (4070333667071).

12211001001201 is an equidigital number, since it uses as much as digits as its factorization.

12211001001201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4070333667070.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12211001001201 its reverse (10210010011221), we get a palindrome (22421011012422).

The spelling of 12211001001201 in words is "twelve trillion, two hundred eleven billion, one million, one thousand, two hundred one".