2146221326 has 32 divisors (see below), whose sum is σ = 3407505408. Its totient is φ = 1012396320.

The previous prime is 2146221293. The next prime is 2146221331. The reversal of 2146221326 is 6231226412.

It is a congruent number.

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, 533615 + ... + 537621.

It is an arithmetic number, because the mean of its divisors is an integer number (106484544).

Almost surely, 2^2146221326 is an apocalyptic number.

2146221326 is a deficient number, since it is larger than the sum of its proper divisors (1261284082).

2146221326 is a wasteful number, since it uses less digits than its factorization.

2146221326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4256.

The product of its digits is 6912, while the sum is 29.

The square root of 2146221326 is about 46327.3280688623. The cubic root of 2146221326 is about 1289.9063141305.

Adding to 2146221326 its reverse (6231226412), we get a palindrome (8377447738).

The spelling of 2146221326 in words is "two billion, one hundred forty-six million, two hundred twenty-one thousand, three hundred twenty-six".