2122121130 has 32 divisors (see below), whose sum is σ = 5164829568. Its totient is φ = 557928000.

The previous prime is 2122121123. The next prime is 2122121161. The reversal of 2122121130 is 311212212.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 496021 + ... + 500280.

It is an arithmetic number, because the mean of its divisors is an integer number (161400924).

Almost surely, 2^2122121130 is an apocalyptic number.

2122121130 is an abundant number, since it is smaller than the sum of its proper divisors (3042708438).

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

2122121130 is a wasteful number, since it uses less digits than its factorization.

2122121130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996382.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2122121130 is about 46066.4859740788. The cubic root of 2122121130 is about 1285.0599536997.

Adding to 2122121130 its reverse (311212212), we get a palindrome (2433333342).

The spelling of 2122121130 in words is "two billion, one hundred twenty-two million, one hundred twenty-one thousand, one hundred thirty".