247055821212 has 48 divisors (see below), whose sum is σ = 602885364480. Its totient is φ = 78593568768.

The previous prime is 247055821147. The next prime is 247055821223. The reversal of 247055821212 is 212128550742.

247055821212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×247055821212² (a number of 24 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 (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 888037 + ... + 1132572.

It is an arithmetic number, because the mean of its divisors is an integer number (12560111760).

Almost surely, 2^247055821212 is an apocalyptic number.

It is an amenable number.

247055821212 is an abundant number, since it is smaller than the sum of its proper divisors (355829543268).

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

247055821212 is a wasteful number, since it uses less digits than its factorization.

247055821212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021082 (or 2021080 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 39.

The spelling of 247055821212 in words is "two hundred forty-seven billion, fifty-five million, eight hundred twenty-one thousand, two hundred twelve".