21202061676967 has 2 divisors, whose sum is σ = 21202061676968. Its totient is φ = 21202061676966.

The previous prime is 21202061676947. The next prime is 21202061676973. The reversal of 21202061676967 is 76967616020212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21202061676967 - 2³⁵ = 21167701938599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21202061676907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10601030838483 + 10601030838484.

It is an arithmetic number, because the mean of its divisors is an integer number (10601030838484).

Almost surely, 2^{21202061676967} is an apocalyptic number.

21202061676967 is a deficient number, since it is larger than the sum of its proper divisors (1).

21202061676967 is an equidigital number, since it uses as much as digits as its factorization.

21202061676967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 21202061676967 in words is "twenty-one trillion, two hundred two billion, sixty-one million, six hundred seventy-six thousand, nine hundred sixty-seven".