210012120112 has 80 divisors (see below), whose sum is σ = 437720859072. Its totient is φ = 97365565440.

The previous prime is 210012120037. The next prime is 210012120121. The reversal of 210012120112 is 211021210012.

It is a super-2 number, since 2×210012120112² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210012120092 and 210012120101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2324488 + ... + 2413144.

Almost surely, 2^210012120112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210012120112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218860429536).

210012120112 is an abundant number, since it is smaller than the sum of its proper divisors (227708738960).

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

210012120112 is a wasteful number, since it uses less digits than its factorization.

210012120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88886 (or 88880 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 210012120112 its reverse (211021210012), we get a palindrome (421033330124).

The spelling of 210012120112 in words is "two hundred ten billion, twelve million, one hundred twenty thousand, one hundred twelve".