221001334 has 8 divisors (see below), whose sum is σ = 331566048. Its totient is φ = 110479320.

The previous prime is 221001311. The next prime is 221001337. The reversal of 221001334 is 433100122.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221001337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11379 + ... + 23905.

It is an arithmetic number, because the mean of its divisors is an integer number (41445756).

Almost surely, 2^221001334 is an apocalyptic number.

221001334 is a deficient number, since it is larger than the sum of its proper divisors (110564714).

221001334 is a wasteful number, since it uses less digits than its factorization.

221001334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21350.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 221001334 is about 14866.1136145262. The cubic root of 221001334 is about 604.5955760828.

Adding to 221001334 its reverse (433100122), we get a palindrome (654101456).

The spelling of 221001334 in words is "two hundred twenty-one million, one thousand, three hundred thirty-four".