2020112021 has 8 divisors (see below), whose sum is σ = 2025727704. Its totient is φ = 2014504960.

The previous prime is 2020111967. The next prime is 2020112063. The reversal of 2020112021 is 1202110202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14326225 + 2005785796 = 3785^2 + 44786^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2020112021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2020111993 and 2020112011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020112321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 969701 + ... + 971781.

It is an arithmetic number, because the mean of its divisors is an integer number (253215963).

Almost surely, 2^2020112021 is an apocalyptic number.

It is an amenable number.

2020112021 is a deficient number, since it is larger than the sum of its proper divisors (5615683).

2020112021 is a wasteful number, since it uses less digits than its factorization.

2020112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4311.

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

The square root of 2020112021 is about 44945.6563084799. The cubic root of 2020112021 is about 1264.1302318431.

Adding to 2020112021 its reverse (1202110202), we get a palindrome (3222222223).

The spelling of 2020112021 in words is "two billion, twenty million, one hundred twelve thousand, twenty-one".