3021210020 has 24 divisors (see below), whose sum is σ = 6415831800. Its totient is φ = 1194904832.

The previous prime is 3021210019. The next prime is 3021210037. The reversal of 3021210020 is 200121203.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 25180324 + 2996029696 = 5018^2 + 54736^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3021209983 and 3021210010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 846875 + ... + 850434.

It is an arithmetic number, because the mean of its divisors is an integer number (267326325).

Almost surely, 2^3021210020 is an apocalyptic number.

It is an amenable number.

3021210020 is an abundant number, since it is smaller than the sum of its proper divisors (3394621780).

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

3021210020 is a wasteful number, since it uses less digits than its factorization.

3021210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697407 (or 1697405 counting only the distinct ones).

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

The square root of 3021210020 is about 54965.5348377508. The cubic root of 3021210020 is about 1445.6404962212.

Adding to 3021210020 its reverse (200121203), we get a palindrome (3221331223).

The spelling of 3021210020 in words is "three billion, twenty-one million, two hundred ten thousand, twenty".