1210103012112 has 80 divisors (see below), whose sum is σ = 3188930091840. Its totient is φ = 395278880256.

The previous prime is 1210103012093. The next prime is 1210103012119. The reversal of 1210103012112 is 2112103010121.

It is a junction number, because it is equal to n+sod(n) for n = 1210103012091 and 1210103012100.

It is not an unprimeable number, because it can be changed into a prime (1210103012119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1822083 + ... + 2395869.

It is an arithmetic number, because the mean of its divisors is an integer number (39861626148).

Almost surely, 2^{1210103012112} is an apocalyptic number.

1210103012112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1210103012112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1594465045920).

1210103012112 is an abundant number, since it is smaller than the sum of its proper divisors (1978827079728).

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

1210103012112 is a wasteful number, since it uses less digits than its factorization.

1210103012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574680 (or 574674 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1210103012112 its reverse (2112103010121), we get a palindrome (3322206022233).

The spelling of 1210103012112 in words is "one trillion, two hundred ten billion, one hundred three million, twelve thousand, one hundred twelve".