1220855327 has 4 divisors (see below), whose sum is σ = 1223900256. Its totient is φ = 1217810400.

The previous prime is 1220855303. The next prime is 1220855351. The reversal of 1220855327 is 7235580221.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1220855303) and next prime (1220855351).

It is a cyclic number.

It is not a de Polignac number, because 1220855327 - 2¹² = 1220851231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220855827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1521863 + ... + 1522664.

It is an arithmetic number, because the mean of its divisors is an integer number (305975064).

Almost surely, 2^1220855327 is an apocalyptic number.

1220855327 is a deficient number, since it is larger than the sum of its proper divisors (3044929).

1220855327 is an equidigital number, since it uses as much as digits as its factorization.

1220855327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3044928.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 1220855327 is about 34940.7402182610. The cubic root of 1220855327 is about 1068.7793828339.

The spelling of 1220855327 in words is "one billion, two hundred twenty million, eight hundred fifty-five thousand, three hundred twenty-seven".