1220130511 has 8 divisors (see below), whose sum is σ = 1292207904. Its totient is φ = 1148087040.

The previous prime is 1220130487. The next prime is 1220130539. The reversal of 1220130511 is 1150310221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1220130511 - 2¹⁷ = 1219999439 is a prime.

It is a super-2 number, since 2×1220130511² = 2977436927746242242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220130551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138931 + ... + 147451.

It is an arithmetic number, because the mean of its divisors is an integer number (161525988).

Almost surely, 2^1220130511 is an apocalyptic number.

1220130511 is a deficient number, since it is larger than the sum of its proper divisors (72077393).

1220130511 is an equidigital number, since it uses as much as digits as its factorization.

1220130511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16961.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1220130511 is about 34930.3666027140. The cubic root of 1220130511 is about 1068.5678312175.

Adding to 1220130511 its reverse (1150310221), we get a palindrome (2370440732).

The spelling of 1220130511 in words is "one billion, two hundred twenty million, one hundred thirty thousand, five hundred eleven".