22212011211223 has 4 divisors (see below), whose sum is σ = 22728569611528. Its totient is φ = 21695452810920.

The previous prime is 22212011211167. The next prime is 22212011211301. The reversal of 22212011211223 is 32211211021222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22212011211223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22212011211194 and 22212011211203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212011211023) 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, 258279200088 + ... + 258279200173.

It is an arithmetic number, because the mean of its divisors is an integer number (5682142402882).

Almost surely, 2^{22212011211223} is an apocalyptic number.

22212011211223 is a deficient number, since it is larger than the sum of its proper divisors (516558400305).

22212011211223 is an equidigital number, since it uses as much as digits as its factorization.

22212011211223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516558400304.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 22212011211223 its reverse (32211211021222), we get a palindrome (54423222232445).

The spelling of 22212011211223 in words is "twenty-two trillion, two hundred twelve billion, eleven million, two hundred eleven thousand, two hundred twenty-three".