221474241868 has 12 divisors (see below), whose sum is σ = 422814461832. Its totient is φ = 100670109920.

The previous prime is 221474241851. The next prime is 221474241881. The reversal of 221474241868 is 868142474122.

221474241868 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 2×221474241868² (a number of 23 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 2516752705 + ... + 2516752792.

It is an arithmetic number, because the mean of its divisors is an integer number (35234538486).

Almost surely, 2^221474241868 is an apocalyptic number.

It is an amenable number.

221474241868 is a deficient number, since it is larger than the sum of its proper divisors (201340219964).

221474241868 is a wasteful number, since it uses less digits than its factorization.

221474241868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5033505512 (or 5033505510 counting only the distinct ones).

The product of its digits is 1376256, while the sum is 49.

The spelling of 221474241868 in words is "two hundred twenty-one billion, four hundred seventy-four million, two hundred forty-one thousand, eight hundred sixty-eight".