221050825480 has 16 divisors (see below), whose sum is σ = 497364357420. Its totient is φ = 88420330176.

The previous prime is 221050825451. The next prime is 221050825517. The reversal of 221050825480 is 84528050122.

It can be written as a sum of positive squares in 2 ways, for example, as 221044783716 + 6041764 = 470154^2 + 2458^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2763135279 + ... + 2763135358.

Almost surely, 2^221050825480 is an apocalyptic number.

221050825480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221050825480 is an abundant number, since it is smaller than the sum of its proper divisors (276313531940).

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

221050825480 is a wasteful number, since it uses less digits than its factorization.

221050825480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5526270648 (or 5526270644 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 37.

The spelling of 221050825480 in words is "two hundred twenty-one billion, fifty million, eight hundred twenty-five thousand, four hundred eighty".