12211100021001 has 32 divisors (see below), whose sum is σ = 18692834761728. Its totient is φ = 6945741276480.

The previous prime is 12211100020997. The next prime is 12211100021119. The reversal of 12211100021001 is 10012000111221.

It is not a de Polignac number, because 12211100021001 - 2² = 12211100020997 is a prime.

It is a super-2 number, since 2×12211100021001² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12211100029001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25711471 + ... + 26182091.

It is an arithmetic number, because the mean of its divisors is an integer number (584151086304).

Almost surely, 2^{12211100021001} is an apocalyptic number.

It is an amenable number.

12211100021001 is a deficient number, since it is larger than the sum of its proper divisors (6481734740727).

12211100021001 is a wasteful number, since it uses less digits than its factorization.

12211100021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476301.

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

Adding to 12211100021001 its reverse (10012000111221), we get a palindrome (22223100132222).

The spelling of 12211100021001 in words is "twelve trillion, two hundred eleven billion, one hundred million, twenty-one thousand, one".