13212057044 has 12 divisors (see below), whose sum is σ = 23126878068. Its totient is φ = 6604377600.

The previous prime is 13212056987. The next prime is 13212057077. The reversal of 13212057044 is 44075021231.

It can be written as a sum of positive squares in 2 ways, for example, as 7281208900 + 5930848144 = 85330^2 + 77012^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 13212056998 and 13212057016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394637 + ... + 426804.

It is an arithmetic number, because the mean of its divisors is an integer number (1927239839).

Almost surely, 2^13212057044 is an apocalyptic number.

It is an amenable number.

13212057044 is a deficient number, since it is larger than the sum of its proper divisors (9914821024).

13212057044 is a wasteful number, since it uses less digits than its factorization.

13212057044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825466 (or 825464 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

Adding to 13212057044 its reverse (44075021231), we get a palindrome (57287078275).

The spelling of 13212057044 in words is "thirteen billion, two hundred twelve million, fifty-seven thousand, forty-four".