220021100099 has 2 divisors, whose sum is σ = 220021100100. Its totient is φ = 220021100098.

The previous prime is 220021100093. The next prime is 220021100149. The reversal of 220021100099 is 990001120022.

It is a happy number.

220021100099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220021100099 is a prime.

It is not a weakly prime, because it can be changed into another prime (220021100093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110010550049 + 110010550050.

It is an arithmetic number, because the mean of its divisors is an integer number (110010550050).

Almost surely, 2^220021100099 is an apocalyptic number.

220021100099 is a deficient number, since it is larger than the sum of its proper divisors (1).

220021100099 is an equidigital number, since it uses as much as digits as its factorization.

220021100099 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 26.

The spelling of 220021100099 in words is "two hundred twenty billion, twenty-one million, one hundred thousand, ninety-nine".