2120121130 has 16 divisors (see below), whose sum is σ = 3843675360. Its totient is φ = 841946832.

The previous prime is 2120121097. The next prime is 2120121139. The reversal of 2120121130 is 311210212.

It is a self number, because there is not a number n which added to its sum of digits gives 2120121130.

It is not an unprimeable number, because it can be changed into a prime (2120121139) 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, 761244 + ... + 764023.

It is an arithmetic number, because the mean of its divisors is an integer number (240229710).

Almost surely, 2^2120121130 is an apocalyptic number.

2120121130 is a deficient number, since it is larger than the sum of its proper divisors (1723554230).

2120121130 is a wasteful number, since it uses less digits than its factorization.

2120121130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525413.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2120121130 is about 46044.7731018408. The cubic root of 2120121130 is about 1284.6561238240.

Adding to 2120121130 its reverse (311210212), we get a palindrome (2431331342).

The spelling of 2120121130 in words is "two billion, one hundred twenty million, one hundred twenty-one thousand, one hundred thirty".