221400233107 has 2 divisors, whose sum is σ = 221400233108. Its totient is φ = 221400233106.

The previous prime is 221400233081. The next prime is 221400233111. The reversal of 221400233107 is 701332004122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221400233107 is a prime.

It is not a weakly prime, because it can be changed into another prime (221400233137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110700116553 + 110700116554.

It is an arithmetic number, because the mean of its divisors is an integer number (110700116554).

Almost surely, 2^221400233107 is an apocalyptic number.

221400233107 is a deficient number, since it is larger than the sum of its proper divisors (1).

221400233107 is an equidigital number, since it uses as much as digits as its factorization.

221400233107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

Adding to 221400233107 its reverse (701332004122), we get a palindrome (922732237229).

The spelling of 221400233107 in words is "two hundred twenty-one billion, four hundred million, two hundred thirty-three thousand, one hundred seven".