21220011012199 has 2 divisors, whose sum is σ = 21220011012200. Its totient is φ = 21220011012198.

The previous prime is 21220011012089. The next prime is 21220011012209. The reversal of 21220011012199 is 99121011002212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21220011012199 - 2⁷ = 21220011012071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21220011012199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21220011012899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10610005506099 + 10610005506100.

It is an arithmetic number, because the mean of its divisors is an integer number (10610005506100).

Almost surely, 2^{21220011012199} is an apocalyptic number.

21220011012199 is a deficient number, since it is larger than the sum of its proper divisors (1).

21220011012199 is an equidigital number, since it uses as much as digits as its factorization.

21220011012199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 31.

The spelling of 21220011012199 in words is "twenty-one trillion, two hundred twenty billion, eleven million, twelve thousand, one hundred ninety-nine".