1012121210112 has 36 divisors (see below), whose sum is σ = 2693718431040. Its totient is φ = 337373736448.

The previous prime is 1012121210071. The next prime is 1012121210119. The reversal of 1012121210112 is 2110121212101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1012121210091 and 1012121210100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012121210119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 658932312 + ... + 658933847.

Almost surely, 2^{1012121210112} is an apocalyptic number.

1012121210112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1012121210112 is an abundant number, since it is smaller than the sum of its proper divisors (1681597220928).

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

1012121210112 is an equidigital number, since it uses as much as digits as its factorization.

1012121210112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317866178 (or 1317866164 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1012121210112 its reverse (2110121212101), we get a palindrome (3122242422213).

The spelling of 1012121210112 in words is "one trillion, twelve billion, one hundred twenty-one million, two hundred ten thousand, one hundred twelve".