22212012201211 has 4 divisors (see below), whose sum is σ = 25385156801392. Its totient is φ = 19038867601032.

The previous prime is 22212012201199. The next prime is 22212012201331. The reversal of 22212012201211 is 11210221021222.

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 22212012201211 - 2³⁹ = 21662256387323 is a prime.

It is a super-3 number, since 3×22212012201211³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22210012201211) 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, 1586572300080 + ... + 1586572300093.

It is an arithmetic number, because the mean of its divisors is an integer number (6346289200348).

Almost surely, 2^{22212012201211} is an apocalyptic number.

22212012201211 is a deficient number, since it is larger than the sum of its proper divisors (3173144600181).

22212012201211 is an equidigital number, since it uses as much as digits as its factorization.

22212012201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3173144600180.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22212012201211 its reverse (11210221021222), we get a palindrome (33422233222433).

The spelling of 22212012201211 in words is "twenty-two trillion, two hundred twelve billion, twelve million, two hundred one thousand, two hundred eleven".