1220130612 has 36 divisors (see below), whose sum is σ = 3183712896. Its totient is φ = 393590160.

The previous prime is 1220130577. The next prime is 1220130629. The reversal of 1220130612 is 2160310221.

1220130612 is a `hidden beast` number, since 1 + 2 + 20 + 1 + 30 + 612 = 666.

1220130612 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 545538 + ... + 547769.

Almost surely, 2^1220130612 is an apocalyptic number.

1220130612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220130612 is an abundant number, since it is smaller than the sum of its proper divisors (1963582284).

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

1220130612 is a wasteful number, since it uses less digits than its factorization.

1220130612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093348 (or 1093343 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1220130612 is about 34930.3680484475. The cubic root of 1220130612 is about 1068.5678607021.

Adding to 1220130612 its reverse (2160310221), we get a palindrome (3380440833).

The spelling of 1220130612 in words is "one billion, two hundred twenty million, one hundred thirty thousand, six hundred twelve".