7133621121 has 12 divisors (see below), whose sum is σ = 11240857680. Its totient is φ = 4323406680.

The previous prime is 7133621063. The next prime is 7133621123. The reversal of 7133621121 is 1211263317.

7133621121 is a `hidden beast` number, since 7 + 1 + 33 + 621 + 1 + 2 + 1 = 666.

It is not a de Polignac number, because 7133621121 - 2¹³ = 7133612929 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7133621123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36028291 + ... + 36028488.

It is an arithmetic number, because the mean of its divisors is an integer number (936738140).

Almost surely, 2^7133621121 is an apocalyptic number.

It is an amenable number.

7133621121 is a deficient number, since it is larger than the sum of its proper divisors (4107236559).

7133621121 is a wasteful number, since it uses less digits than its factorization.

7133621121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72056796 (or 72056793 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 7133621121 is about 84460.7667559323. The cubic root of 7133621121 is about 1925.0263556070.

Adding to 7133621121 its reverse (1211263317), we get a palindrome (8344884438).

The spelling of 7133621121 in words is "seven billion, one hundred thirty-three million, six hundred twenty-one thousand, one hundred twenty-one".