212123232122 has 8 divisors (see below), whose sum is σ = 334931419200. Its totient is φ = 100479425724.

The previous prime is 212123232089. The next prime is 212123232127. The reversal of 212123232122 is 221232321212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (212123232127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2791095122 + ... + 2791095197.

It is an arithmetic number, because the mean of its divisors is an integer number (41866427400).

Almost surely, 2^212123232122 is an apocalyptic number.

212123232122 is a deficient number, since it is larger than the sum of its proper divisors (122808187078).

212123232122 is a wasteful number, since it uses less digits than its factorization.

212123232122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5582190340.

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

Adding to 212123232122 its reverse (221232321212), we get a palindrome (433355553334).

The spelling of 212123232122 in words is "two hundred twelve billion, one hundred twenty-three million, two hundred thirty-two thousand, one hundred twenty-two".