221112310199953 has 2 divisors, whose sum is σ = 221112310199954. Its totient is φ = 221112310199952.

The previous prime is 221112310199779. The next prime is 221112310200139. The reversal of 221112310199953 is 359991013211122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195577651768464 + 25534658431489 = 13984908^2 + 5053183^2 .

It is a cyclic number.

It is not a de Polignac number, because 221112310199953 - 2²¹ = 221112308102801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221112310199897 and 221112310199906.

It is not a weakly prime, because it can be changed into another prime (221112340199953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110556155099976 + 110556155099977.

It is an arithmetic number, because the mean of its divisors is an integer number (110556155099977).

Almost surely, 2^{221112310199953} is an apocalyptic number.

It is an amenable number.

221112310199953 is a deficient number, since it is larger than the sum of its proper divisors (1).

221112310199953 is an equidigital number, since it uses as much as digits as its factorization.

221112310199953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 262440, while the sum is 49.

The spelling of 221112310199953 in words is "two hundred twenty-one trillion, one hundred twelve billion, three hundred ten million, one hundred ninety-nine thousand, nine hundred fifty-three".