221022033 has 8 divisors (see below), whose sum is σ = 304202496. Its totient is φ = 142594800.

The previous prime is 221022017. The next prime is 221022073. The reversal of 221022033 is 330220122.

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

It is not a de Polignac number, because 221022033 - 2⁴ = 221022017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221022073) by changing a digit.

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, 1188198 + ... + 1188383.

It is an arithmetic number, because the mean of its divisors is an integer number (38025312).

Almost surely, 2^221022033 is an apocalyptic number.

It is an amenable number.

221022033 is a deficient number, since it is larger than the sum of its proper divisors (83180463).

221022033 is a wasteful number, since it uses less digits than its factorization.

221022033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2376615.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 221022033 is about 14866.8097788328. The cubic root of 221022033 is about 604.6144509811.

Adding to 221022033 its reverse (330220122), we get a palindrome (551242155).

It can be divided in two parts, 2210220 and 33, that added together give a triangular number (2210253 = T₂₁₀₂).

The spelling of 221022033 in words is "two hundred twenty-one million, twenty-two thousand, thirty-three".