20110212222223 has 4 divisors (see below), whose sum is σ = 20110222207440. Its totient is φ = 20110202237008.

The previous prime is 20110212222131. The next prime is 20110212222229. The reversal of 20110212222223 is 32222221201102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20110212222223 - 2²⁵ = 20110178667791 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20110212222194 and 20110212222203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110212222229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 795478 + ... + 6391651.

It is an arithmetic number, because the mean of its divisors is an integer number (5027555551860).

Almost surely, 2^{20110212222223} is an apocalyptic number.

20110212222223 is a deficient number, since it is larger than the sum of its proper divisors (9985217).

20110212222223 is an equidigital number, since it uses as much as digits as its factorization.

20110212222223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9985216.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 20110212222223 its reverse (32222221201102), we get a palindrome (52332433423325).

The spelling of 20110212222223 in words is "twenty trillion, one hundred ten billion, two hundred twelve million, two hundred twenty-two thousand, two hundred twenty-three".