2020021221010 has 24 divisors (see below), whose sum is σ = 3937248466020. Its totient is φ = 745853988672.

The previous prime is 2020021220953. The next prime is 2020021221037. The reversal of 2020021221010 is 101221200202.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 49302205681 + 1970719015329 = 222041^2 + 1403823^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 597637725 + ... + 597641104.

Almost surely, 2^{2020021221010} is an apocalyptic number.

2020021221010 is a deficient number, since it is larger than the sum of its proper divisors (1917227245010).

2020021221010 is a wasteful number, since it uses less digits than its factorization.

2020021221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195278862 (or 1195278849 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2020021221010 its reverse (101221200202), we get a palindrome (2121242421212).

The spelling of 2020021221010 in words is "two trillion, twenty billion, twenty-one million, two hundred twenty-one thousand, ten".