1221130327 has 2 divisors, whose sum is σ = 1221130328. Its totient is φ = 1221130326.

The previous prime is 1221130321. The next prime is 1221130333. The reversal of 1221130327 is 7230311221.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1221130321) and next prime (1221130333).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1221130327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1221130298 and 1221130307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1221130321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610565163 + 610565164.

It is an arithmetic number, because the mean of its divisors is an integer number (610565164).

Almost surely, 2^1221130327 is an apocalyptic number.

1221130327 is a deficient number, since it is larger than the sum of its proper divisors (1).

1221130327 is an equidigital number, since it uses as much as digits as its factorization.

1221130327 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 1221130327 is about 34944.6752309991. The cubic root of 1221130327 is about 1068.8596250101.

Adding to 1221130327 its reverse (7230311221), we get a palindrome (8451441548).

The spelling of 1221130327 in words is "one billion, two hundred twenty-one million, one hundred thirty thousand, three hundred twenty-seven".