1012221223297 has 2 divisors, whose sum is σ = 1012221223298. Its totient is φ = 1012221223296.

The previous prime is 1012221223289. The next prime is 1012221223303. The reversal of 1012221223297 is 7923221222101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 530579671281 + 481641552016 = 728409^2 + 694004^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012221223297 - 2³ = 1012221223289 is a prime.

It is not a weakly prime, because it can be changed into another prime (1012221223697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506110611648 + 506110611649.

It is an arithmetic number, because the mean of its divisors is an integer number (506110611649).

Almost surely, 2^{1012221223297} is an apocalyptic number.

It is an amenable number.

1012221223297 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012221223297 is an equidigital number, since it uses as much as digits as its factorization.

1012221223297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

Adding to 1012221223297 its reverse (7923221222101), we get a palindrome (8935442445398).

The spelling of 1012221223297 in words is "one trillion, twelve billion, two hundred twenty-one million, two hundred twenty-three thousand, two hundred ninety-seven".