2021220014873 has 2 divisors, whose sum is σ = 2021220014874. Its totient is φ = 2021220014872.

The previous prime is 2021220014861. The next prime is 2021220014899. The reversal of 2021220014873 is 3784100221202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1514344364569 + 506875650304 = 1230587^2 + 711952^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021220014873 is a prime.

It is a super-2 number, since 2×2021220014873² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2021220014833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010610007436 + 1010610007437.

It is an arithmetic number, because the mean of its divisors is an integer number (1010610007437).

Almost surely, 2^{2021220014873} is an apocalyptic number.

It is an amenable number.

2021220014873 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021220014873 is an equidigital number, since it uses as much as digits as its factorization.

2021220014873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 32.

The spelling of 2021220014873 in words is "two trillion, twenty-one billion, two hundred twenty million, fourteen thousand, eight hundred seventy-three".