12001022201211 has 16 divisors (see below), whose sum is σ = 16167636240000. Its totient is φ = 7917558190848.

The previous prime is 12001022201183. The next prime is 12001022201213. The reversal of 12001022201211 is 11210222010021.

It is a de Polignac number, because none of the positive numbers 2^k-12001022201211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12001022201213) 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, 1936540 + ... + 5268038.

It is an arithmetic number, because the mean of its divisors is an integer number (1010477265000).

Almost surely, 2^{12001022201211} is an apocalyptic number.

12001022201211 is a deficient number, since it is larger than the sum of its proper divisors (4166614038789).

12001022201211 is a wasteful number, since it uses less digits than its factorization.

12001022201211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3343978.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12001022201211 its reverse (11210222010021), we get a palindrome (23211244211232).

It can be divided in two parts, 120010 and 22201211, that added together give a triangular number (22321221 = T₆₆₈₁).

The spelling of 12001022201211 in words is "twelve trillion, one billion, twenty-two million, two hundred one thousand, two hundred eleven".