13212145422244 has 24 divisors (see below), whose sum is σ = 24100573474880. Its totient is φ = 6331596914016.

The previous prime is 13212145422209. The next prime is 13212145422251. The reversal of 13212145422244 is 44222454121231.

It is a Harshad number since it is a multiple of its sum of digits (37).

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 7 ways as a sum of consecutive naturals, for example, 666193464 + ... + 666213295.

Almost surely, 2^{13212145422244} is an apocalyptic number.

It is an amenable number.

13212145422244 is a deficient number, since it is larger than the sum of its proper divisors (10888428052636).

13212145422244 is a wasteful number, since it uses less digits than its factorization.

13212145422244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332406867 (or 1332406865 counting only the distinct ones).

The product of its digits is 122880, while the sum is 37.

Adding to 13212145422244 its reverse (44222454121231), we get a palindrome (57434599543475).

The spelling of 13212145422244 in words is "thirteen trillion, two hundred twelve billion, one hundred forty-five million, four hundred twenty-two thousand, two hundred forty-four".