212004400013 has 16 divisors (see below), whose sum is σ = 249100542720. Its totient is φ = 176621026176.

The previous prime is 212004399977. The next prime is 212004400021. The reversal of 212004400013 is 310004400212.

It is not a de Polignac number, because 212004400013 - 2⁶ = 212004399949 is a prime.

It is a super-2 number, since 2×212004400013² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212004399964 and 212004400000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212004400043) 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, 182633 + ... + 676286.

It is an arithmetic number, because the mean of its divisors is an integer number (15568783920).

Almost surely, 2^212004400013 is an apocalyptic number.

It is an amenable number.

212004400013 is a deficient number, since it is larger than the sum of its proper divisors (37096142707).

212004400013 is an equidigital number, since it uses as much as digits as its factorization.

212004400013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859916.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 212004400013 its reverse (310004400212), we get a palindrome (522008800225).

The spelling of 212004400013 in words is "two hundred twelve billion, four million, four hundred thousand, thirteen".