2121037472 has 12 divisors (see below), whose sum is σ = 4175792586. Its totient is φ = 1060518720.

The previous prime is 2121037463. The next prime is 2121037511. The reversal of 2121037472 is 2747301212.

It can be written as a sum of positive squares in only one way, i.e., 2078995216 + 42042256 = 45596^2 + 6484^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33141179 + ... + 33141242.

Almost surely, 2^2121037472 is an apocalyptic number.

It is an amenable number.

2121037472 is a deficient number, since it is larger than the sum of its proper divisors (2054755114).

2121037472 is an equidigital number, since it uses as much as digits as its factorization.

2121037472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66282431 (or 66282423 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 2121037472 is about 46054.7225808603. The cubic root of 2121037472 is about 1284.8411784714.

Adding to 2121037472 its reverse (2747301212), we get a palindrome (4868338684).

The spelling of 2121037472 in words is "two billion, one hundred twenty-one million, thirty-seven thousand, four hundred seventy-two".