13999121202212 has 36 divisors (see below), whose sum is σ = 25856243306460. Its totient is φ = 6631027854912.

The previous prime is 13999121202161. The next prime is 13999121202223. The reversal of 13999121202212 is 21220212199931.

It can be written as a sum of positive squares in 2 ways, for example, as 7412681445376 + 6586439756836 = 2722624^2 + 2566406^2 .

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 11 ways as a sum of consecutive naturals, for example, 136130798 + ... + 136233594.

It is an arithmetic number, because the mean of its divisors is an integer number (718228980735).

Almost surely, 2^{13999121202212} is an apocalyptic number.

It is an amenable number.

13999121202212 is a deficient number, since it is larger than the sum of its proper divisors (11857122104248).

13999121202212 is a wasteful number, since it uses less digits than its factorization.

13999121202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197148 (or 197127 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 44.

The spelling of 13999121202212 in words is "thirteen trillion, nine hundred ninety-nine billion, one hundred twenty-one million, two hundred two thousand, two hundred twelve".