1020120213112 has 256 divisors, whose sum is σ = 2689399480320. Its totient is φ = 349667366400.

The previous prime is 1020120213109. The next prime is 1020120213199. The reversal of 1020120213112 is 2113120210201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 52114287 + ... + 52133857.

It is an arithmetic number, because the mean of its divisors is an integer number (10505466720).

Almost surely, 2^{1020120213112} 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 1020120213112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1344699740160).

1020120213112 is an abundant number, since it is smaller than the sum of its proper divisors (1669279267208).

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

1020120213112 is a wasteful number, since it uses less digits than its factorization.

1020120213112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19914 (or 19910 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1020120213112 its reverse (2113120210201), we get a palindrome (3133240423313).

The spelling of 1020120213112 in words is "one trillion, twenty billion, one hundred twenty million, two hundred thirteen thousand, one hundred twelve".