220032021 has 8 divisors (see below), whose sum is σ = 320046624. Its totient is φ = 133352720.

The previous prime is 220032013. The next prime is 220032023. The reversal of 220032021 is 120230022.

220032021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 220032021 - 2³ = 220032013 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 220031988 and 220032006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220032023) 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, 3333786 + ... + 3333851.

It is an arithmetic number, because the mean of its divisors is an integer number (40005828).

Almost surely, 2^220032021 is an apocalyptic number.

It is an amenable number.

220032021 is a deficient number, since it is larger than the sum of its proper divisors (100014603).

220032021 is a wasteful number, since it uses less digits than its factorization.

220032021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6667651.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 220032021 is about 14833.4763626063. The cubic root of 220032021 is about 603.7103608523.

Adding to 220032021 its reverse (120230022), we get a palindrome (340262043).

The spelling of 220032021 in words is "two hundred twenty million, thirty-two thousand, twenty-one".