220421033 has 16 divisors (see below), whose sum is σ = 265760640. Its totient is φ = 178588800.

The previous prime is 220421017. The next prime is 220421041. The reversal of 220421033 is 330124022.

It is a cyclic number.

It is not a de Polignac number, because 220421033 - 2⁴ = 220421017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220421533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67703 + ... + 70883.

It is an arithmetic number, because the mean of its divisors is an integer number (16610040).

Almost surely, 2^220421033 is an apocalyptic number.

It is an amenable number.

220421033 is a deficient number, since it is larger than the sum of its proper divisors (45339607).

220421033 is a wasteful number, since it uses less digits than its factorization.

220421033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3728.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 220421033 is about 14846.5832096143. The cubic root of 220421033 is about 604.0659338063.

Adding to 220421033 its reverse (330124022), we get a palindrome (550545055).

The spelling of 220421033 in words is "two hundred twenty million, four hundred twenty-one thousand, thirty-three".