221084747799 has 16 divisors (see below), whose sum is σ = 299594506080. Its totient is φ = 145001001600.

The previous prime is 221084747789. The next prime is 221084747803. The reversal of 221084747799 is 997747480122.

It is not a de Polignac number, because 221084747799 - 2³² = 216789780503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221084747789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2276164 + ... + 2371305.

It is an arithmetic number, because the mean of its divisors is an integer number (18724656630).

Almost surely, 2^221084747799 is an apocalyptic number.

221084747799 is a deficient number, since it is larger than the sum of its proper divisors (78509758281).

221084747799 is a wasteful number, since it uses less digits than its factorization.

221084747799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4647730.

The product of its (nonzero) digits is 14224896, while the sum is 60.

The spelling of 221084747799 in words is "two hundred twenty-one billion, eighty-four million, seven hundred forty-seven thousand, seven hundred ninety-nine".