221034331 has 8 divisors (see below), whose sum is σ = 252806400. Its totient is φ = 189311208.

The previous prime is 221034329. The next prime is 221034349. The reversal of 221034331 is 133430122.

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

It is a cyclic number.

It is not a de Polignac number, because 221034331 - 2¹ = 221034329 is a prime.

It is a super-2 number, since 2×221034331² = 97712350961235122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221034299 and 221034308.

It is not an unprimeable number, because it can be changed into a prime (221034311) 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 7 ways as a sum of consecutive naturals, for example, 1981 + ... + 21118.

It is an arithmetic number, because the mean of its divisors is an integer number (31600800).

Almost surely, 2^221034331 is an apocalyptic number.

221034331 is a deficient number, since it is larger than the sum of its proper divisors (31772069).

221034331 is a wasteful number, since it uses less digits than its factorization.

221034331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24473.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 221034331 is about 14867.2233789635. The cubic root of 221034331 is about 604.6256646605.

Adding to 221034331 its reverse (133430122), we get a palindrome (354464453).

The spelling of 221034331 in words is "two hundred twenty-one million, thirty-four thousand, three hundred thirty-one".