221002210199993 has 2 divisors, whose sum is σ = 221002210199994. Its totient is φ = 221002210199992.

The previous prime is 221002210199987. The next prime is 221002210200127. The reversal of 221002210199993 is 399991012200122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164899833216889 + 56102376983104 = 12841333^2 + 7490152^2 .

It is a cyclic number.

It is not a de Polignac number, because 221002210199993 - 2¹⁰ = 221002210198969 is a prime.

It is not a weakly prime, because it can be changed into another prime (221002210199923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110501105099996 + 110501105099997.

It is an arithmetic number, because the mean of its divisors is an integer number (110501105099997).

Almost surely, 2^{221002210199993} is an apocalyptic number.

It is an amenable number.

221002210199993 is a deficient number, since it is larger than the sum of its proper divisors (1).

221002210199993 is an equidigital number, since it uses as much as digits as its factorization.

221002210199993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 314928, while the sum is 50.

The spelling of 221002210199993 in words is "two hundred twenty-one trillion, two billion, two hundred ten million, one hundred ninety-nine thousand, nine hundred ninety-three".