221221040000003 has 2 divisors, whose sum is σ = 221221040000004. Its totient is φ = 221221040000002.

The previous prime is 221221039999957. The next prime is 221221040000063. The reversal of 221221040000003 is 300000040122122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221221040000003 - 2²² = 221221035805699 is a prime.

It is not a weakly prime, because it can be changed into another prime (221221040000063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110610520000001 + 110610520000002.

It is an arithmetic number, because the mean of its divisors is an integer number (110610520000002).

Almost surely, 2^{221221040000003} is an apocalyptic number.

221221040000003 is a deficient number, since it is larger than the sum of its proper divisors (1).

221221040000003 is an equidigital number, since it uses as much as digits as its factorization.

221221040000003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 221221040000003 its reverse (300000040122122), we get a palindrome (521221080122125).

The spelling of 221221040000003 in words is "two hundred twenty-one trillion, two hundred twenty-one billion, forty million, three", and thus it is an aban number.