21202022102099 has 2 divisors, whose sum is σ = 21202022102100. Its totient is φ = 21202022102098.

The previous prime is 21202022102069. The next prime is 21202022102117. The reversal of 21202022102099 is 99020122020212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21202022102099 - 2²⁰ = 21202021053523 is a prime.

It is not a weakly prime, because it can be changed into another prime (21202022102039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10601011051049 + 10601011051050.

It is an arithmetic number, because the mean of its divisors is an integer number (10601011051050).

Almost surely, 2^{21202022102099} is an apocalyptic number.

21202022102099 is a deficient number, since it is larger than the sum of its proper divisors (1).

21202022102099 is an equidigital number, since it uses as much as digits as its factorization.

21202022102099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The spelling of 21202022102099 in words is "twenty-one trillion, two hundred two billion, twenty-two million, one hundred two thousand, ninety-nine".