221429033 has 8 divisors (see below), whose sum is σ = 253872768. Its totient is φ = 189188064.

The previous prime is 221428997. The next prime is 221429041. The reversal of 221429033 is 330924122.

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 221429033 - 2¹⁴ = 221412649 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 221428993 and 221429011.

It is not an unprimeable number, because it can be changed into a prime (221420033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48341 + ... + 52722.

It is an arithmetic number, because the mean of its divisors is an integer number (31734096).

Almost surely, 2^221429033 is an apocalyptic number.

It is an amenable number.

221429033 is a deficient number, since it is larger than the sum of its proper divisors (32443735).

221429033 is a wasteful number, since it uses less digits than its factorization.

221429033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101383.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 221429033 is about 14880.4916921451. The cubic root of 221429033 is about 604.9853449083.

The spelling of 221429033 in words is "two hundred twenty-one million, four hundred twenty-nine thousand, thirty-three".