2151321315122 has 16 divisors (see below), whose sum is σ = 3882083576640. Its totient is φ = 873468804528.

The previous prime is 2151321315113. The next prime is 2151321315127. The reversal of 2151321315122 is 2215131231512.

It is not an unprimeable number, because it can be changed into a prime (2151321315127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4043836793 + ... + 4043837324.

It is an arithmetic number, because the mean of its divisors is an integer number (242630223540).

Almost surely, 2^{2151321315122} is an apocalyptic number.

2151321315122 is a deficient number, since it is larger than the sum of its proper divisors (1730762261518).

2151321315122 is a wasteful number, since it uses less digits than its factorization.

2151321315122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8087674145.

The product of its digits is 3600, while the sum is 29.

Adding to 2151321315122 its reverse (2215131231512), we get a palindrome (4366452546634).

The spelling of 2151321315122 in words is "two trillion, one hundred fifty-one billion, three hundred twenty-one million, three hundred fifteen thousand, one hundred twenty-two".