12211000012001 has 16 divisors (see below), whose sum is σ = 14813184925440. Its totient is φ = 9826324915200.

The previous prime is 12211000011997. The next prime is 12211000012007. The reversal of 12211000012001 is 10021000011221.

It is a cyclic number.

It is not a de Polignac number, because 12211000012001 - 2² = 12211000011997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12211000012007) 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, 127899221 + ... + 127994658.

It is an arithmetic number, because the mean of its divisors is an integer number (925824057840).

Almost surely, 2^{12211000012001} is an apocalyptic number.

It is an amenable number.

12211000012001 is a deficient number, since it is larger than the sum of its proper divisors (2602184913439).

12211000012001 is a wasteful number, since it uses less digits than its factorization.

12211000012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255894304.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12211000012001 its reverse (10021000011221), we get a palindrome (22232000023222).

The spelling of 12211000012001 in words is "twelve trillion, two hundred eleven billion, twelve thousand, one".