2101022009959 has 2 divisors, whose sum is σ = 2101022009960. Its totient is φ = 2101022009958.

The previous prime is 2101022009951. The next prime is 2101022009963. The reversal of 2101022009959 is 9599002201012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2101022009959 - 2³ = 2101022009951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101022009951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050511004979 + 1050511004980.

It is an arithmetic number, because the mean of its divisors is an integer number (1050511004980).

Almost surely, 2^{2101022009959} is an apocalyptic number.

2101022009959 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101022009959 is an equidigital number, since it uses as much as digits as its factorization.

2101022009959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 40.

The spelling of 2101022009959 in words is "two trillion, one hundred one billion, twenty-two million, nine thousand, nine hundred fifty-nine".