1220334411 has 4 divisors (see below), whose sum is σ = 1627112552. Its totient is φ = 813556272.

The previous prime is 1220334403. The next prime is 1220334433. The reversal of 1220334411 is 1144330221.

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

It is not a de Polignac number, because 1220334411 - 2³ = 1220334403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220334611) 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, 203389066 + ... + 203389071.

It is an arithmetic number, because the mean of its divisors is an integer number (406778138).

Almost surely, 2^1220334411 is an apocalyptic number.

1220334411 is a deficient number, since it is larger than the sum of its proper divisors (406778141).

1220334411 is an equidigital number, since it uses as much as digits as its factorization.

1220334411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406778140.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1220334411 is about 34933.2851446869. The cubic root of 1220334411 is about 1068.6273518570.

Adding to 1220334411 its reverse (1144330221), we get a palindrome (2364664632).

The spelling of 1220334411 in words is "one billion, two hundred twenty million, three hundred thirty-four thousand, four hundred eleven".