221383484212 has 36 divisors (see below), whose sum is σ = 425882866528. Its totient is φ = 100619442000.

The previous prime is 221383484177. The next prime is 221383484239. The reversal of 221383484212 is 212484383122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10028587 + ... + 10050637.

Almost surely, 2^221383484212 is an apocalyptic number.

221383484212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

221383484212 is a deficient number, since it is larger than the sum of its proper divisors (204499382316).

221383484212 is a wasteful number, since it uses less digits than its factorization.

221383484212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42820 (or 42807 counting only the distinct ones).

The product of its digits is 147456, while the sum is 40.

The spelling of 221383484212 in words is "two hundred twenty-one billion, three hundred eighty-three million, four hundred eighty-four thousand, two hundred twelve".