2016122599021 has 2 divisors, whose sum is σ = 2016122599022. Its totient is φ = 2016122599020.

The previous prime is 2016122599013. The next prime is 2016122599037. The reversal of 2016122599021 is 1209952216102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1771108488900 + 245014110121 = 1330830^2 + 494989^2 .

It is a cyclic number.

It is not a de Polignac number, because 2016122599021 - 2³ = 2016122599013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2016122599321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1008061299510 + 1008061299511.

It is an arithmetic number, because the mean of its divisors is an integer number (1008061299511).

Almost surely, 2^{2016122599021} is an apocalyptic number.

It is an amenable number.

2016122599021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2016122599021 is an equidigital number, since it uses as much as digits as its factorization.

2016122599021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 40.

The spelling of 2016122599021 in words is "two trillion, sixteen billion, one hundred twenty-two million, five hundred ninety-nine thousand, twenty-one".