103440121212 has 48 divisors (see below), whose sum is σ = 245948320800. Its totient is φ = 33827516160.

The previous prime is 103440121207. The next prime is 103440121229. The reversal of 103440121212 is 212121044301.

103440121212 is a modest number, since divided by 121212 gives 103440 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103114 + ... + 466382.

It is an arithmetic number, because the mean of its divisors is an integer number (5123923350).

Almost surely, 2^103440121212 is an apocalyptic number.

103440121212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

103440121212 is an abundant number, since it is smaller than the sum of its proper divisors (142508199588).

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

103440121212 is a wasteful number, since it uses less digits than its factorization.

103440121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363726 (or 363724 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 103440121212 its reverse (212121044301), we get a palindrome (315561165513).

The spelling of 103440121212 in words is "one hundred three billion, four hundred forty million, one hundred twenty-one thousand, two hundred twelve".