2121275302 has 16 divisors (see below), whose sum is σ = 3261892032. Its totient is φ = 1034015680.

The previous prime is 2121275297. The next prime is 2121275327. The reversal of 2121275302 is 2035721212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113763 + ... + 131089.

It is an arithmetic number, because the mean of its divisors is an integer number (203868252).

Almost surely, 2^2121275302 is an apocalyptic number.

2121275302 is a deficient number, since it is larger than the sum of its proper divisors (1140616730).

2121275302 is a wasteful number, since it uses less digits than its factorization.

2121275302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18863.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 2121275302 is about 46057.3045455333. The cubic root of 2121275302 is about 1284.8891993670.

Adding to 2121275302 its reverse (2035721212), we get a palindrome (4156996514).

The spelling of 2121275302 in words is "two billion, one hundred twenty-one million, two hundred seventy-five thousand, three hundred two".