2020102121 has 8 divisors (see below), whose sum is σ = 2143661760. Its totient is φ = 1899519952.

The previous prime is 2020102109. The next prime is 2020102171. The reversal of 2020102121 is 1212010202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2020102121 - 2¹⁴ = 2020085737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020102171) by changing a digit.

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, 742970 + ... + 745683.

It is an arithmetic number, because the mean of its divisors is an integer number (267957720).

Almost surely, 2^2020102121 is an apocalyptic number.

It is an amenable number.

2020102121 is a deficient number, since it is larger than the sum of its proper divisors (123559639).

2020102121 is a wasteful number, since it uses less digits than its factorization.

2020102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488735.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2020102121 is about 44945.5461753442. The cubic root of 2020102121 is about 1264.1281667910.

Adding to 2020102121 its reverse (1212010202), we get a palindrome (3232112323).

The spelling of 2020102121 in words is "two billion, twenty million, one hundred two thousand, one hundred twenty-one".