2121311022 has 16 divisors (see below), whose sum is σ = 4427084160. Its totient is φ = 676359992.

The previous prime is 2121311011. The next prime is 2121311041. The reversal of 2121311022 is 2201131212.

It is a junction number, because it is equal to n+sod(n) for n = 2121310992 and 2121311010.

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, 7685772 + ... + 7686047.

It is an arithmetic number, because the mean of its divisors is an integer number (276692760).

Almost surely, 2^2121311022 is an apocalyptic number.

2121311022 is an abundant number, since it is smaller than the sum of its proper divisors (2305773138).

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

2121311022 is a wasteful number, since it uses less digits than its factorization.

2121311022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15371847.

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

The square root of 2121311022 is about 46057.6923216958. The cubic root of 2121311022 is about 1284.8964113783.

Adding to 2121311022 its reverse (2201131212), we get a palindrome (4322442234).

The spelling of 2121311022 in words is "two billion, one hundred twenty-one million, three hundred eleven thousand, twenty-two".