2151321122 has 8 divisors (see below), whose sum is σ = 3227180736. Its totient is φ = 1075594212.

The previous prime is 2151321121. The next prime is 2151321163. The reversal of 2151321122 is 2211231512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2151321094 and 2151321103.

It is not an unprimeable number, because it can be changed into a prime (2151321121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37283 + ... + 75449.

It is an arithmetic number, because the mean of its divisors is an integer number (403397592).

Almost surely, 2^2151321122 is an apocalyptic number.

2151321122 is a deficient number, since it is larger than the sum of its proper divisors (1075859614).

2151321122 is a wasteful number, since it uses less digits than its factorization.

2151321122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66352.

The product of its digits is 240, while the sum is 20.

The square root of 2151321122 is about 46382.3363145929. The cubic root of 2151321122 is about 1290.9271867195.

Adding to 2151321122 its reverse (2211231512), we get a palindrome (4362552634).

The spelling of 2151321122 in words is "two billion, one hundred fifty-one million, three hundred twenty-one thousand, one hundred twenty-two".