2221235141197 has 2 divisors, whose sum is σ = 2221235141198. Its totient is φ = 2221235141196.

The previous prime is 2221235141173. The next prime is 2221235141227. The reversal of 2221235141197 is 7911415321222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1875286486921 + 345948654276 = 1369411^2 + 588174^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221235141197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221235141297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110617570598 + 1110617570599.

It is an arithmetic number, because the mean of its divisors is an integer number (1110617570599).

Almost surely, 2^{2221235141197} is an apocalyptic number.

It is an amenable number.

2221235141197 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221235141197 is an equidigital number, since it uses as much as digits as its factorization.

2221235141197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 40.

The spelling of 2221235141197 in words is "two trillion, two hundred twenty-one billion, two hundred thirty-five million, one hundred forty-one thousand, one hundred ninety-seven".