221440119997 has 2 divisors, whose sum is σ = 221440119998. Its totient is φ = 221440119996.

The previous prime is 221440119991. The next prime is 221440120009. The reversal of 221440119997 is 799911044122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 177149233881 + 44290886116 = 420891^2 + 210454^2 .

It is a cyclic number.

It is not a de Polignac number, because 221440119997 - 2³¹ = 219292636349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221440119997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221440119991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110720059998 + 110720059999.

It is an arithmetic number, because the mean of its divisors is an integer number (110720059999).

Almost surely, 2^221440119997 is an apocalyptic number.

It is an amenable number.

221440119997 is a deficient number, since it is larger than the sum of its proper divisors (1).

221440119997 is an equidigital number, since it uses as much as digits as its factorization.

221440119997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 49.

The spelling of 221440119997 in words is "two hundred twenty-one billion, four hundred forty million, one hundred nineteen thousand, nine hundred ninety-seven".