1223222100313 has 2 divisors, whose sum is σ = 1223222100314. Its totient is φ = 1223222100312.

The previous prime is 1223222100301. The next prime is 1223222100323. The reversal of 1223222100313 is 3130012223221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1214309229849 + 8912870464 = 1101957^2 + 94408^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223222100313 is a prime.

It is not a weakly prime, because it can be changed into another prime (1223222100323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611611050156 + 611611050157.

It is an arithmetic number, because the mean of its divisors is an integer number (611611050157).

Almost surely, 2^{1223222100313} is an apocalyptic number.

It is an amenable number.

1223222100313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223222100313 is an equidigital number, since it uses as much as digits as its factorization.

1223222100313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1223222100313 its reverse (3130012223221), we get a palindrome (4353234323534).

The spelling of 1223222100313 in words is "one trillion, two hundred twenty-three billion, two hundred twenty-two million, one hundred thousand, three hundred thirteen".