21046344364012 has 36 divisors (see below), whose sum is σ = 42405389419176. Its totient is φ = 9063019097280.

The previous prime is 21046344363953. The next prime is 21046344364027.

21046344364012 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×21046344364012² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 662485513 + ... + 662517280.

It is an arithmetic number, because the mean of its divisors is an integer number (1177927483866).

Almost surely, 2^{21046344364012} is an apocalyptic number.

21046344364012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21046344364012 is an abundant number, since it is smaller than the sum of its proper divisors (21359045055164).

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

21046344364012 is a wasteful number, since it uses less digits than its factorization.

21046344364012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325002846 (or 1325002825 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 40.

It can be divided in two parts, 2104634 and 4364012, that added together give a palindrome (6468646).

The spelling of 21046344364012 in words is "twenty-one trillion, forty-six billion, three hundred forty-four million, three hundred sixty-four thousand, twelve".