1220001323327 has 2 divisors, whose sum is σ = 1220001323328. Its totient is φ = 1220001323326.

The previous prime is 1220001323309. The next prime is 1220001323347. The reversal of 1220001323327 is 7233231000221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1220001323327 - 2¹⁰ = 1220001322303 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220001323296 and 1220001323305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220001323347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610000661663 + 610000661664.

It is an arithmetic number, because the mean of its divisors is an integer number (610000661664).

Almost surely, 2^{1220001323327} is an apocalyptic number.

1220001323327 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220001323327 is an equidigital number, since it uses as much as digits as its factorization.

1220001323327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 26.

Adding to 1220001323327 its reverse (7233231000221), we get a palindrome (8453232323548).

The spelling of 1220001323327 in words is "one trillion, two hundred twenty billion, one million, three hundred twenty-three thousand, three hundred twenty-seven".