20120122223 has 2 divisors, whose sum is σ = 20120122224. Its totient is φ = 20120122222.

The previous prime is 20120122207. The next prime is 20120122241. The reversal of 20120122223 is 32222102102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20120122223 - 2⁴ = 20120122207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20120122283) 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 as a sum of consecutive naturals, namely, 10060061111 + 10060061112.

It is an arithmetic number, because the mean of its divisors is an integer number (10060061112).

Almost surely, 2^20120122223 is an apocalyptic number.

20120122223 is a deficient number, since it is larger than the sum of its proper divisors (1).

20120122223 is an equidigital number, since it uses as much as digits as its factorization.

20120122223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20120122223 its reverse (32222102102), we get a palindrome (52342224325).

The spelling of 20120122223 in words is "twenty billion, one hundred twenty million, one hundred twenty-two thousand, two hundred twenty-three".