2122315442 has 16 divisors (see below), whose sum is σ = 3429141912. Its totient is φ = 979305600.

The previous prime is 2122315367. The next prime is 2122315451. The reversal of 2122315442 is 2445132212.

It can be written as a sum of positive squares in 4 ways, for example, as 1638711361 + 483604081 = 40481^2 + 21991^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

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, 173942 + ... + 185742.

Almost surely, 2^2122315442 is an apocalyptic number.

2122315442 is a deficient number, since it is larger than the sum of its proper divisors (1306826470).

2122315442 is a wasteful number, since it uses less digits than its factorization.

2122315442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18733.

The product of its digits is 3840, while the sum is 26.

The square root of 2122315442 is about 46068.5949644658. The cubic root of 2122315442 is about 1285.0991746699.

Adding to 2122315442 its reverse (2445132212), we get a palindrome (4567447654).

The spelling of 2122315442 in words is "two billion, one hundred twenty-two million, three hundred fifteen thousand, four hundred forty-two".