212120122112 has 18 divisors (see below), whose sum is σ = 423411650508. Its totient is φ = 106060060928.

The previous prime is 212120122099. The next prime is 212120122121. The reversal of 212120122112 is 211221021212.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414296858 + ... + 414297369.

Almost surely, 2^212120122112 is an apocalyptic number.

It is an amenable number.

212120122112 is a deficient number, since it is larger than the sum of its proper divisors (211291528396).

212120122112 is an frugal number, since it uses more digits than its factorization.

212120122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828594243 (or 828594229 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212120122112 its reverse (211221021212), we get a palindrome (423341143324).

The spelling of 212120122112 in words is "two hundred twelve billion, one hundred twenty million, one hundred twenty-two thousand, one hundred twelve".