22112112212211 has 8 divisors (see below), whose sum is σ = 33694647180544. Its totient is φ = 12635492692680.

The previous prime is 22112112212159. The next prime is 22112112212227. The reversal of 22112112212211 is 11221221121122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22112112212211 - 2⁹ = 22112112211699 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1052957724391 = 22112112212211 / (2 + 2 + 1 + 1 + 2 + 1 + 1 + 2 + 2 + 1 + 2 + 2 + 1 + 1).

It is not an unprimeable number, because it can be changed into a prime (22112112212231) 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 7 ways as a sum of consecutive naturals, for example, 526478862175 + ... + 526478862216.

It is an arithmetic number, because the mean of its divisors is an integer number (4211830897568).

Almost surely, 2^{22112112212211} is an apocalyptic number.

22112112212211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22112112212211 is a deficient number, since it is larger than the sum of its proper divisors (11582534968333).

22112112212211 is a wasteful number, since it uses less digits than its factorization.

22112112212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052957724401.

The product of its digits is 128, while the sum is 21.

Adding to 22112112212211 its reverse (11221221121122), we get a palindrome (33333333333333).

The spelling of 22112112212211 in words is "twenty-two trillion, one hundred twelve billion, one hundred twelve million, two hundred twelve thousand, two hundred eleven".