232221020 has 24 divisors (see below), whose sum is σ = 516351024. Its totient is φ = 87424256.

The previous prime is 232221013. The next prime is 232221061. The reversal of 232221020 is 20122232.

It is a junction number, because it is equal to n+sod(n) for n = 232220986 and 232221004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341162 + ... + 341841.

It is an arithmetic number, because the mean of its divisors is an integer number (21514626).

Almost surely, 2^232221020 is an apocalyptic number.

232221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232221020 is an abundant number, since it is smaller than the sum of its proper divisors (284130004).

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

232221020 is a wasteful number, since it uses less digits than its factorization.

232221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683029 (or 683027 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 232221020 is about 15238.7998215083. The cubic root of 232221020 is about 614.6584306382.

Adding to 232221020 its reverse (20122232), we get a palindrome (252343252).

It can be divided in two parts, 23222 and 1020, that added together give a palindrome (24242).

The spelling of 232221020 in words is "two hundred thirty-two million, two hundred twenty-one thousand, twenty".