221260117488 has 20 divisors (see below), whose sum is σ = 571588636968. Its totient is φ = 73753372480.

The previous prime is 221260117487. The next prime is 221260117489. The reversal of 221260117488 is 884711062122.

It is an interprime number because it is at equal distance from previous prime (221260117487) and next prime (221260117489).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221260117487) 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, 2304792843 + ... + 2304792938.

Almost surely, 2^221260117488 is an apocalyptic number.

It is an amenable number.

221260117488 is an abundant number, since it is smaller than the sum of its proper divisors (350328519480).

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

221260117488 is a wasteful number, since it uses less digits than its factorization.

221260117488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4609585792 (or 4609585786 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 42.

The spelling of 221260117488 in words is "two hundred twenty-one billion, two hundred sixty million, one hundred seventeen thousand, four hundred eighty-eight".