221901060 has 24 divisors (see below), whose sum is σ = 621323136. Its totient is φ = 59173600.

The previous prime is 221901041. The next prime is 221901107. The reversal of 221901060 is 60109122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1849116 + ... + 1849235.

It is an arithmetic number, because the mean of its divisors is an integer number (25888464).

Almost surely, 2^221901060 is an apocalyptic number.

221901060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221901060 is an abundant number, since it is smaller than the sum of its proper divisors (399422076).

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

221901060 is a wasteful number, since it uses less digits than its factorization.

221901060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3698363 (or 3698361 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 221901060 is about 14896.3438467296. The cubic root of 221901060 is about 605.4149283502.

The spelling of 221901060 in words is "two hundred twenty-one million, nine hundred one thousand, sixty".