10212647218 has 16 divisors (see below), whose sum is σ = 16231118904. Its totient is φ = 4802682880.

The previous prime is 10212647213. The next prime is 10212647233. The reversal of 10212647218 is 81274621201.

It can be written as a sum of positive squares in 4 ways, for example, as 9037734489 + 1174912729 = 95067^2 + 34277^2 .

It is a super-3 number, since 3×10212647218³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (10212647213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51055 + ... + 151762.

Almost surely, 2^10212647218 is an apocalyptic number.

10212647218 is a deficient number, since it is larger than the sum of its proper divisors (6018471686).

10212647218 is a wasteful number, since it uses less digits than its factorization.

10212647218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204317.

The product of its (nonzero) digits is 10752, while the sum is 34.

The spelling of 10212647218 in words is "ten billion, two hundred twelve million, six hundred forty-seven thousand, two hundred eighteen".