7721130022 has 16 divisors (see below), whose sum is σ = 11856272400. Its totient is φ = 3769950240.

The previous prime is 7721130019. The next prime is 7721130059. The reversal of 7721130022 is 2200311277.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210697 + ... + 244612.

It is an arithmetic number, because the mean of its divisors is an integer number (741017025).

Almost surely, 2^7721130022 is an apocalyptic number.

7721130022 is a deficient number, since it is larger than the sum of its proper divisors (4135142378).

7721130022 is a wasteful number, since it uses less digits than its factorization.

7721130022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455511.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 7721130022 is about 87869.9608626293. The cubic root of 7721130022 is about 1976.4854516746.

Adding to 7721130022 its reverse (2200311277), we get a palindrome (9921441299).

The spelling of 7721130022 in words is "seven billion, seven hundred twenty-one million, one hundred thirty thousand, twenty-two".