221100485 has 8 divisors (see below), whose sum is σ = 266910336. Its totient is φ = 175820560.

The previous prime is 221100443. The next prime is 221100527. The reversal of 221100485 is 584001122.

It is an interprime number because it is at equal distance from previous prime (221100443) and next prime (221100527).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 221100485 - 2⁶ = 221100421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 221100485.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131561 + ... + 133230.

It is an arithmetic number, because the mean of its divisors is an integer number (33363792).

Almost surely, 2^221100485 is an apocalyptic number.

It is an amenable number.

221100485 is a deficient number, since it is larger than the sum of its proper divisors (45809851).

221100485 is a wasteful number, since it uses less digits than its factorization.

221100485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264963.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 221100485 is about 14869.4480395205. The cubic root of 221100485 is about 604.6859786945.

The spelling of 221100485 in words is "two hundred twenty-one million, one hundred thousand, four hundred eighty-five".