1220001323347 has 2 divisors, whose sum is σ = 1220001323348. Its totient is φ = 1220001323346.

The previous prime is 1220001323327. The next prime is 1220001323351. The reversal of 1220001323347 is 7433231000221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220001323347 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220001323327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610000661673 + 610000661674.

It is an arithmetic number, because the mean of its divisors is an integer number (610000661674).

Almost surely, 2^{1220001323347} is an apocalyptic number.

1220001323347 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220001323347 is an equidigital number, since it uses as much as digits as its factorization.

1220001323347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 28.

Adding to 1220001323347 its reverse (7433231000221), we get a palindrome (8653232323568).

The spelling of 1220001323347 in words is "one trillion, two hundred twenty billion, one million, three hundred twenty-three thousand, three hundred forty-seven".