123122222212 has 24 divisors (see below), whose sum is σ = 235077780672. Its totient is φ = 55958392800.

The previous prime is 123122222207. The next prime is 123122222227. The reversal of 123122222212 is 212222221321.

It is a happy number.

It is a super-2 number, since 2×123122222212² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253993 + ... + 557455.

It is an arithmetic number, because the mean of its divisors is an integer number (9794907528).

Almost surely, 2^123122222212 is an apocalyptic number.

It is an amenable number.

123122222212 is a deficient number, since it is larger than the sum of its proper divisors (111955558460).

123122222212 is a wasteful number, since it uses less digits than its factorization.

123122222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312699 (or 312697 counting only the distinct ones).

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

Adding to 123122222212 its reverse (212222221321), we get a palindrome (335344443533).

The spelling of 123122222212 in words is "one hundred twenty-three billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred twelve".