2021421014089 has 2 divisors, whose sum is σ = 2021421014090. Its totient is φ = 2021421014088.

The previous prime is 2021421014077. The next prime is 2021421014131. The reversal of 2021421014089 is 9804101241202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1569675719689 + 451745294400 = 1252867^2 + 672120^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021421014089 - 2²³ = 2021412625481 is a prime.

It is a super-2 number, since 2×2021421014089² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2021421014059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010710507044 + 1010710507045.

It is an arithmetic number, because the mean of its divisors is an integer number (1010710507045).

Almost surely, 2^{2021421014089} is an apocalyptic number.

It is an amenable number.

2021421014089 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021421014089 is an equidigital number, since it uses as much as digits as its factorization.

2021421014089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 34.

The spelling of 2021421014089 in words is "two trillion, twenty-one billion, four hundred twenty-one million, fourteen thousand, eighty-nine".