222100009999 has 4 divisors (see below), whose sum is σ = 253828582864. Its totient is φ = 190371437136.

The previous prime is 222100009997. The next prime is 222100010003. The reversal of 222100009999 is 999900001222.

222100009999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222100009999 - 2¹ = 222100009997 is a prime.

It is a Duffinian number.

222100009999 is a modest number, since divided by 9999 gives 2221 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222100009997) 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 in 3 ways as a sum of consecutive naturals, for example, 15864286422 + ... + 15864286435.

It is an arithmetic number, because the mean of its divisors is an integer number (63457145716).

Almost surely, 2^222100009999 is an apocalyptic number.

222100009999 is a deficient number, since it is larger than the sum of its proper divisors (31728572865).

222100009999 is an equidigital number, since it uses as much as digits as its factorization.

222100009999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31728572864.

The product of its (nonzero) digits is 52488, while the sum is 43.

The spelling of 222100009999 in words is "two hundred twenty-two billion, one hundred million, nine thousand, nine hundred ninety-nine".