221220410308 has 12 divisors (see below), whose sum is σ = 399623967232. Its totient is φ = 107042133960.

The previous prime is 221220410297. The next prime is 221220410309. The reversal of 221220410308 is 803014022122.

It is not an unprimeable number, because it can be changed into a prime (221220410309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 892017660 + ... + 892017907.

Almost surely, 2^221220410308 is an apocalyptic number.

It is an amenable number.

221220410308 is a deficient number, since it is larger than the sum of its proper divisors (178403556924).

221220410308 is a wasteful number, since it uses less digits than its factorization.

221220410308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784035602 (or 1784035600 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The spelling of 221220410308 in words is "two hundred twenty-one billion, two hundred twenty million, four hundred ten thousand, three hundred eight".