3421220020 has 24 divisors (see below), whose sum is σ = 7306336800. Its totient is φ = 1345292832.

The previous prime is 3421219999. The next prime is 3421220021. The reversal of 3421220020 is 200221243.

It is a junction number, because it is equal to n+sod(n) for n = 3421219976 and 3421220003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3421220021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1448490 + ... + 1450849.

It is an arithmetic number, because the mean of its divisors is an integer number (304430700).

Almost surely, 2^3421220020 is an apocalyptic number.

It is an amenable number.

3421220020 is an abundant number, since it is smaller than the sum of its proper divisors (3885116780).

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

3421220020 is a wasteful number, since it uses less digits than its factorization.

3421220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2899407 (or 2899405 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 3421220020 is about 58491.1960896681. The cubic root of 3421220020 is about 1506.8163880198.

Adding to 3421220020 its reverse (200221243), we get a palindrome (3621441263).

The spelling of 3421220020 in words is "three billion, four hundred twenty-one million, two hundred twenty thousand, twenty".