220103021 has 8 divisors (see below), whose sum is σ = 225125760. Its totient is φ = 215094528.

The previous prime is 220103017. The next prime is 220103033. The reversal of 220103021 is 120301022.

It is a happy number.

220103021 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 220103021 - 2² = 220103017 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 = 220102993 and 220103011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220303021) 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, 31565 + ... + 37901.

It is an arithmetic number, because the mean of its divisors is an integer number (28140720).

Almost surely, 2^220103021 is an apocalyptic number.

It is an amenable number.

220103021 is a deficient number, since it is larger than the sum of its proper divisors (5022739).

220103021 is an equidigital number, since it uses as much as digits as its factorization.

220103021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7123.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 220103021 is about 14835.8694049253. The cubic root of 220103021 is about 603.7752890173.

Adding to 220103021 its reverse (120301022), we get a palindrome (340404043).

The spelling of 220103021 in words is "two hundred twenty million, one hundred three thousand, twenty-one".