1220120130 has 16 divisors (see below), whose sum is σ = 2928288384. Its totient is φ = 325365360.

The previous prime is 1220120129. The next prime is 1220120137. The reversal of 1220120130 is 310210221.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1220120137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20335306 + ... + 20335365.

It is an arithmetic number, because the mean of its divisors is an integer number (183018024).

Almost surely, 2^1220120130 is an apocalyptic number.

1220120130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220120130 is an abundant number, since it is smaller than the sum of its proper divisors (1708168254).

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

1220120130 is a wasteful number, since it uses less digits than its factorization.

1220120130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40670681.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1220120130 is about 34930.2180067631. The cubic root of 1220120130 is about 1068.5648007127.

Adding to 1220120130 its reverse (310210221), we get a palindrome (1530330351).

Subtracting from 1220120130 its reverse (310210221), we obtain a palindrome (909909909).

The spelling of 1220120130 in words is "one billion, two hundred twenty million, one hundred twenty thousand, one hundred thirty".