1321441011212 has 48 divisors (see below), whose sum is σ = 2699330823168. Its totient is φ = 554237631360.

The previous prime is 1321441011173. The next prime is 1321441011223. The reversal of 1321441011212 is 2121101441231.

It is a super-2 number, since 2×1321441011212² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20142848 + ... + 20208344.

It is an arithmetic number, because the mean of its divisors is an integer number (56236058816).

Almost surely, 2^{1321441011212} is an apocalyptic number.

It is an amenable number.

1321441011212 is an abundant number, since it is smaller than the sum of its proper divisors (1377889811956).

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

1321441011212 is a wasteful number, since it uses less digits than its factorization.

1321441011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80886 (or 80884 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 1321441011212 its reverse (2121101441231), we get a palindrome (3442542452443).

The spelling of 1321441011212 in words is "one trillion, three hundred twenty-one billion, four hundred forty-one million, eleven thousand, two hundred twelve".