2021000122073 has 2 divisors, whose sum is σ = 2021000122074. Its totient is φ = 2021000122072.

The previous prime is 2021000122061. The next prime is 2021000122103. The reversal of 2021000122073 is 3702210001202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1842027127369 + 178972994704 = 1357213^2 + 423052^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021000122073 - 2²⁴ = 2020983344857 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021000122033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010500061036 + 1010500061037.

It is an arithmetic number, because the mean of its divisors is an integer number (1010500061037).

Almost surely, 2^{2021000122073} is an apocalyptic number.

It is an amenable number.

2021000122073 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021000122073 is an equidigital number, since it uses as much as digits as its factorization.

2021000122073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 20.

Adding to 2021000122073 its reverse (3702210001202), we get a palindrome (5723210123275).

The spelling of 2021000122073 in words is "two trillion, twenty-one billion, one hundred twenty-two thousand, seventy-three".