123222322211 has 4 divisors (see below), whose sum is σ = 123236303400. Its totient is φ = 123208341024.

The previous prime is 123222322169. The next prime is 123222322217. The reversal of 123222322211 is 112223222321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112223222321 = 7 ⋅16031888903.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123222322211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123222322217) 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, 6977366 + ... + 6995003.

It is an arithmetic number, because the mean of its divisors is an integer number (30809075850).

Almost surely, 2^123222322211 is an apocalyptic number.

123222322211 is a deficient number, since it is larger than the sum of its proper divisors (13981189).

123222322211 is an equidigital number, since it uses as much as digits as its factorization.

123222322211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13981188.

The product of its digits is 1152, while the sum is 23.

Adding to 123222322211 its reverse (112223222321), we get a palindrome (235445544532).

The spelling of 123222322211 in words is "one hundred twenty-three billion, two hundred twenty-two million, three hundred twenty-two thousand, two hundred eleven".