220321002 has 32 divisors (see below), whose sum is σ = 501603840. Its totient is φ = 63860720.

The previous prime is 220320943. The next prime is 220321009. The reversal of 220321002 is 200123022.

220321002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (220321009) 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, 71052 + ... + 74087.

It is an arithmetic number, because the mean of its divisors is an integer number (15675120).

Almost surely, 2^220321002 is an apocalyptic number.

220321002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

220321002 is an abundant number, since it is smaller than the sum of its proper divisors (281282838).

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

220321002 is a wasteful number, since it uses less digits than its factorization.

220321002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145178.

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

The square root of 220321002 is about 14843.2140050597. The cubic root of 220321002 is about 603.9745413447.

Adding to 220321002 its reverse (200123022), we get a palindrome (420444024).

The spelling of 220321002 in words is "two hundred twenty million, three hundred twenty-one thousand, two".