42021102899 has 2 divisors, whose sum is σ = 42021102900. Its totient is φ = 42021102898.

The previous prime is 42021102883. The next prime is 42021102901. The reversal of 42021102899 is 99820112024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42021102899 - 2⁴ = 42021102883 is a prime.

Together with 42021102901, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42021102859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21010551449 + 21010551450.

It is an arithmetic number, because the mean of its divisors is an integer number (21010551450).

Almost surely, 2^42021102899 is an apocalyptic number.

42021102899 is a deficient number, since it is larger than the sum of its proper divisors (1).

42021102899 is an equidigital number, since it uses as much as digits as its factorization.

42021102899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 38.

The spelling of 42021102899 in words is "forty-two billion, twenty-one million, one hundred two thousand, eight hundred ninety-nine".