2221000111241 has 2 divisors, whose sum is σ = 2221000111242. Its totient is φ = 2221000111240.

The previous prime is 2221000111223. The next prime is 2221000111279. The reversal of 2221000111241 is 1421110001222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2211826302841 + 9173808400 = 1487221^2 + 95780^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221000111241 is a prime.

It is not a weakly prime, because it can be changed into another prime (2221000111741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110500055620 + 1110500055621.

It is an arithmetic number, because the mean of its divisors is an integer number (1110500055621).

Almost surely, 2^{2221000111241} is an apocalyptic number.

It is an amenable number.

2221000111241 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221000111241 is an equidigital number, since it uses as much as digits as its factorization.

2221000111241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2221000111241 its reverse (1421110001222), we get a palindrome (3642110112463).

The spelling of 2221000111241 in words is "two trillion, two hundred twenty-one billion, one hundred eleven thousand, two hundred forty-one".