12201001211 has 16 divisors (see below), whose sum is σ = 14054114304. Its totient is φ = 10375508544.

The previous prime is 12201001171. The next prime is 12201001213. The reversal of 12201001211 is 11210010221.

It is a cyclic number.

It is not a de Polignac number, because 12201001211 - 2⁶ = 12201001147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12201001192 and 12201001201.

It is not an unprimeable number, because it can be changed into a prime (12201001213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2436236 + ... + 2441238.

It is an arithmetic number, because the mean of its divisors is an integer number (878382144).

Almost surely, 2^12201001211 is an apocalyptic number.

12201001211 is a deficient number, since it is larger than the sum of its proper divisors (1853113093).

12201001211 is a wasteful number, since it uses less digits than its factorization.

12201001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7690.

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

Adding to 12201001211 its reverse (11210010221), we get a palindrome (23411011432).

The spelling of 12201001211 in words is "twelve billion, two hundred one million, one thousand, two hundred eleven".