13040648012212 has 24 divisors (see below), whose sum is σ = 23439062421320. Its totient is φ = 6343790192640.

The previous prime is 13040648012149. The next prime is 13040648012219. The reversal of 13040648012212 is 21221084604031.

It can be written as a sum of positive squares in 4 ways, for example, as 4539609764496 + 8501038247716 = 2130636^2 + 2915654^2 .

It is a super-2 number, since 2×13040648012212² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13040648012219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 920464 + ... + 5189272.

Almost surely, 2^{13040648012212} is an apocalyptic number.

It is an amenable number.

13040648012212 is a deficient number, since it is larger than the sum of its proper divisors (10398414409108).

13040648012212 is a wasteful number, since it uses less digits than its factorization.

13040648012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4289491 (or 4289489 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 13040648012212 in words is "thirteen trillion, forty billion, six hundred forty-eight million, twelve thousand, two hundred twelve".