12123422210 has 16 divisors (see below), whose sum is σ = 21825490176. Its totient is φ = 4848628848.

The previous prime is 12123422197. The next prime is 12123422219. The reversal of 12123422210 is 1222432121.

It is not an unprimeable number, because it can be changed into a prime (12123422219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21074 + ... + 157133.

It is an arithmetic number, because the mean of its divisors is an integer number (1364093136).

Almost surely, 2^12123422210 is an apocalyptic number.

12123422210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12123422210 is a deficient number, since it is larger than the sum of its proper divisors (9702067966).

12123422210 is a wasteful number, since it uses less digits than its factorization.

12123422210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185017.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12123422210 its reverse (1222432121), we get a palindrome (13345854331).

The spelling of 12123422210 in words is "twelve billion, one hundred twenty-three million, four hundred twenty-two thousand, two hundred ten".