1222303021397 has 2 divisors, whose sum is σ = 1222303021398. Its totient is φ = 1222303021396.

The previous prime is 1222303021349. The next prime is 1222303021409. The reversal of 1222303021397 is 7931203032221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 887616473956 + 334686547441 = 942134^2 + 578521^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222303021397 is a prime.

It is a super-2 number, since 2×1222303021397² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222303020397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611151510698 + 611151510699.

It is an arithmetic number, because the mean of its divisors is an integer number (611151510699).

Almost surely, 2^{1222303021397} is an apocalyptic number.

It is an amenable number.

1222303021397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222303021397 is an equidigital number, since it uses as much as digits as its factorization.

1222303021397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 35.

The spelling of 1222303021397 in words is "one trillion, two hundred twenty-two billion, three hundred three million, twenty-one thousand, three hundred ninety-seven".