212102120112 has 40 divisors (see below), whose sum is σ = 548000019504. Its totient is φ = 70691733504.

The previous prime is 212102120057. The next prime is 212102120123. The reversal of 212102120112 is 211021201212.

It is a junction number, because it is equal to n+sod(n) for n = 212102120091 and 212102120100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107248 + ... + 660080.

Almost surely, 2^212102120112 is an apocalyptic number.

It is an amenable number.

212102120112 is an abundant number, since it is smaller than the sum of its proper divisors (335897899392).

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

212102120112 is a wasteful number, since it uses less digits than its factorization.

212102120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560837 (or 560831 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212102120112 its reverse (211021201212), we get a palindrome (423123321324).

The spelling of 212102120112 in words is "two hundred twelve billion, one hundred two million, one hundred twenty thousand, one hundred twelve".