2121143422 has 16 divisors (see below), whose sum is σ = 3245160672. Its totient is φ = 1039465440.

The previous prime is 2121143371. The next prime is 2121143429. The reversal of 2121143422 is 2243411212.

It is a junction number, because it is equal to n+sod(n) for n = 2121143393 and 2121143402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121143429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95647 + ... + 115717.

It is an arithmetic number, because the mean of its divisors is an integer number (202822542).

Almost surely, 2^2121143422 is an apocalyptic number.

2121143422 is a deficient number, since it is larger than the sum of its proper divisors (1124017250).

2121143422 is a wasteful number, since it uses less digits than its factorization.

2121143422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21123.

The product of its digits is 768, while the sum is 22.

The square root of 2121143422 is about 46055.8728285547. The cubic root of 2121143422 is about 1284.8625715645.

Adding to 2121143422 its reverse (2243411212), we get a palindrome (4364554634).

The spelling of 2121143422 in words is "two billion, one hundred twenty-one million, one hundred forty-three thousand, four hundred twenty-two".