2122121330 has 32 divisors (see below), whose sum is σ = 4369403520. Its totient is φ = 726935040.

The previous prime is 2122121321. The next prime is 2122121387. The reversal of 2122121330 is 331212212.

It is a junction number, because it is equal to n+sod(n) for n = 2122121299 and 2122121308.

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, 69026 + ... + 94914.

It is an arithmetic number, because the mean of its divisors is an integer number (136543860).

Almost surely, 2^2122121330 is an apocalyptic number.

2122121330 is an abundant number, since it is smaller than the sum of its proper divisors (2247282190).

2122121330 is a wasteful number, since it uses less digits than its factorization.

2122121330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27074.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2122121330 is about 46066.4881448543. The cubic root of 2122121330 is about 1285.0599940700.

Adding to 2122121330 its reverse (331212212), we get a palindrome (2453333542).

The spelling of 2122121330 in words is "two billion, one hundred twenty-two million, one hundred twenty-one thousand, three hundred thirty".