221454442098 has 30 divisors (see below), whose sum is σ = 496235412189. Its totient is φ = 73816150824.

The previous prime is 221454442043. The next prime is 221454442103. The reversal of 221454442098 is 890244454122.

221454442098 is a `hidden beast` number, since 2 + 2 + 14 + 544 + 4 + 2 + 0 + 98 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 197805231009 + 23649211089 = 444753^2 + 153783^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=332757.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 5971140 + ... + 6008112.

Almost surely, 2^221454442098 is an apocalyptic number.

221454442098 is an abundant number, since it is smaller than the sum of its proper divisors (274780970091).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221454442098 is an frugal number, since it uses more digits than its factorization.

221454442098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73960 (or 36978 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 45.

The spelling of 221454442098 in words is "two hundred twenty-one billion, four hundred fifty-four million, four hundred forty-two thousand, ninety-eight".