21202011199 has 2 divisors, whose sum is σ = 21202011200. Its totient is φ = 21202011198.

The previous prime is 21202011151. The next prime is 21202011241. The reversal of 21202011199 is 99111020212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21202011199 - 2²³ = 21193622591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21202071199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10601005599 + 10601005600.

It is an arithmetic number, because the mean of its divisors is an integer number (10601005600).

Almost surely, 2^21202011199 is an apocalyptic number.

21202011199 is a deficient number, since it is larger than the sum of its proper divisors (1).

21202011199 is an equidigital number, since it uses as much as digits as its factorization.

21202011199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 28.

The spelling of 21202011199 in words is "twenty-one billion, two hundred two million, eleven thousand, one hundred ninety-nine".