20344215306212 has 24 divisors (see below), whose sum is σ = 40719278624640. Its totient is φ = 8712339128640.

The previous prime is 20344215306119. The next prime is 20344215306221. The reversal of 20344215306212 is 21260351244302.

It is a happy 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, 275391089 + ... + 275464952.

It is an arithmetic number, because the mean of its divisors is an integer number (1696636609360).

Almost surely, 2^{20344215306212} is an apocalyptic number.

It is an amenable number.

20344215306212 is an abundant number, since it is smaller than the sum of its proper divisors (20375063318428).

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

20344215306212 is a wasteful number, since it uses less digits than its factorization.

20344215306212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550857371 (or 550857369 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 20344215306212 in words is "twenty trillion, three hundred forty-four billion, two hundred fifteen million, three hundred six thousand, two hundred twelve".