123213223122 has 32 divisors (see below), whose sum is σ = 269427643200. Its totient is φ = 37254174720.

The previous prime is 123213223121. The next prime is 123213223127. The reversal of 123213223122 is 221322312321.

It is a super-2 number, since 2×123213223122² (a number of 23 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 123213223092 and 123213223101.

It is not an unprimeable number, because it can be changed into a prime (123213223121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2049283 + ... + 2108550.

It is an arithmetic number, because the mean of its divisors is an integer number (8419613850).

Almost surely, 2^123213223122 is an apocalyptic number.

123213223122 is an abundant number, since it is smaller than the sum of its proper divisors (146214420078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123213223122 is a wasteful number, since it uses less digits than its factorization.

123213223122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4158298.

The product of its digits is 1728, while the sum is 24.

Adding to 123213223122 its reverse (221322312321), we get a palindrome (344535535443).

The spelling of 123213223122 in words is "one hundred twenty-three billion, two hundred thirteen million, two hundred twenty-three thousand, one hundred twenty-two".