2020011012021 has 16 divisors (see below), whose sum is σ = 2711680778240. Its totient is φ = 1337510890800.

The previous prime is 2020011012001. The next prime is 2020011012049. The reversal of 2020011012021 is 1202101100202.

It is not a de Polignac number, because 2020011012021 - 2⁵ = 2020011011989 is a prime.

It is a super-2 number, since 2×2020011012021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2020011011988 and 2020011012006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020011012001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2087700 + ... + 2898018.

It is an arithmetic number, because the mean of its divisors is an integer number (169480048640).

Almost surely, 2^{2020011012021} is an apocalyptic number.

It is an amenable number.

2020011012021 is a deficient number, since it is larger than the sum of its proper divisors (691669766219).

2020011012021 is a wasteful number, since it uses less digits than its factorization.

2020011012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815976.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2020011012021 its reverse (1202101100202), we get a palindrome (3222112112223).

The spelling of 2020011012021 in words is "two trillion, twenty billion, eleven million, twelve thousand, twenty-one".