220001024 has 36 divisors (see below), whose sum is σ = 441687960. Its totient is φ = 109363200.

The previous prime is 220000997. The next prime is 220001027. The reversal of 220001024 is 420100022.

It is a super-2 number, since 2×220001024² = 96800901122097152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220000996 and 220001014.

It is not an unprimeable number, because it can be changed into a prime (220001027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43424 + ... + 48224.

It is an arithmetic number, because the mean of its divisors is an integer number (12269110).

Almost surely, 2^220001024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220001024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220843980).

220001024 is an abundant number, since it is smaller than the sum of its proper divisors (221686936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220001024 is an equidigital number, since it uses as much as digits as its factorization.

220001024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4996 (or 4982 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 220001024 is about 14832.4314931841. The cubic root of 220001024 is about 603.6820102986.

Adding to 220001024 its reverse (420100022), we get a palindrome (640101046).

The spelling of 220001024 in words is "two hundred twenty million, one thousand, twenty-four".