12212001202211 has 4 divisors (see below), whose sum is σ = 12471831015072. Its totient is φ = 11952171389352.

The previous prime is 12212001202139. The next prime is 12212001202217. The reversal of 12212001202211 is 11220210021221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12212001202211 - 2¹⁸ = 12212000940067 is a prime.

It is a super-2 number, since 2×12212001202211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12212001202211.

It is not an unprimeable number, because it can be changed into a prime (12212001202217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129914906360 + ... + 129914906453.

It is an arithmetic number, because the mean of its divisors is an integer number (3117957753768).

Almost surely, 2^{12212001202211} is an apocalyptic number.

12212001202211 is a deficient number, since it is larger than the sum of its proper divisors (259829812861).

12212001202211 is an equidigital number, since it uses as much as digits as its factorization.

12212001202211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259829812860.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12212001202211 its reverse (11220210021221), we get a palindrome (23432211223432).

The spelling of 12212001202211 in words is "twelve trillion, two hundred twelve billion, one million, two hundred two thousand, two hundred eleven".