1210120101112 has 64 divisors (see below), whose sum is σ = 2461663058400. Its totient is φ = 554369978880.

The previous prime is 1210120101107. The next prime is 1210120101139. The reversal of 1210120101112 is 2111010210121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 1210120101092 and 1210120101101.

It is a congruent number.

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, 92815458 + ... + 92828494.

Almost surely, 2^{1210120101112} 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 1210120101112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1230831529200).

1210120101112 is an abundant number, since it is smaller than the sum of its proper divisors (1251542957288).

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

1210120101112 is a wasteful number, since it uses less digits than its factorization.

1210120101112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19616 (or 19612 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1210120101112 its reverse (2111010210121), we get a palindrome (3321130311233).

The spelling of 1210120101112 in words is "one trillion, two hundred ten billion, one hundred twenty million, one hundred one thousand, one hundred twelve".