1220130516 has 48 divisors (see below), whose sum is σ = 3108930048. Its totient is φ = 369362400.

The previous prime is 1220130487. The next prime is 1220130539. The reversal of 1220130516 is 6150310221.

It is a junction number, because it is equal to n+sod(n) for n = 1220130492 and 1220130501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144121 + ... + 152351.

It is an arithmetic number, because the mean of its divisors is an integer number (64769376).

Almost surely, 2^1220130516 is an apocalyptic number.

It is an amenable number.

1220130516 is an abundant number, since it is smaller than the sum of its proper divisors (1888799532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220130516 is a wasteful number, since it uses less digits than its factorization.

1220130516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9372 (or 9370 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1220130516 is about 34930.3666742850. The cubic root of 1220130516 is about 1068.5678326771.

Adding to 1220130516 its reverse (6150310221), we get a palindrome (7370440737).

The spelling of 1220130516 in words is "one billion, two hundred twenty million, one hundred thirty thousand, five hundred sixteen".