12211111201001 has 4 divisors (see below), whose sum is σ = 12211379040000. Its totient is φ = 12210843362004.

The previous prime is 12211111200941. The next prime is 12211111201021. The reversal of 12211111201001 is 10010211111221.

12211111201001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 12211111201001 - 2¹⁰ = 12211111199977 is a prime.

It is a super-2 number, since 2×12211111201001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12211111201021) 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, 133851101 + ... + 133942298.

It is an arithmetic number, because the mean of its divisors is an integer number (3052844760000).

Almost surely, 2^{12211111201001} is an apocalyptic number.

It is an amenable number.

12211111201001 is a deficient number, since it is larger than the sum of its proper divisors (267838999).

12211111201001 is an equidigital number, since it uses as much as digits as its factorization.

12211111201001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267838998.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 12211111201001 its reverse (10010211111221), we get a palindrome (22221322312222).

The spelling of 12211111201001 in words is "twelve trillion, two hundred eleven billion, one hundred eleven million, two hundred one thousand, one".