12696822535420 has 24 divisors (see below), whose sum is σ = 26759584835424. Its totient is φ = 5060394250176.

The previous prime is 12696822535417. The next prime is 12696822535447. The reversal of 12696822535420 is 2453522869621.

It is a super-2 number, since 2×12696822535420² (a number of 27 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 1145917072 + ... + 1145928151.

It is an arithmetic number, because the mean of its divisors is an integer number (1114982701476).

Almost surely, 2^{12696822535420} is an apocalyptic number.

12696822535420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12696822535420 is an abundant number, since it is smaller than the sum of its proper divisors (14062762300004).

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

12696822535420 is a wasteful number, since it uses less digits than its factorization.

12696822535420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2291845509 (or 2291845507 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 55.

The spelling of 12696822535420 in words is "twelve trillion, six hundred ninety-six billion, eight hundred twenty-two million, five hundred thirty-five thousand, four hundred twenty".