7122700072 has 32 divisors (see below), whose sum is σ = 13801936680. Its totient is φ = 3443722240.

The previous prime is 7122700043. The next prime is 7122700073. The reversal of 7122700072 is 2700072217.

It can be written as a sum of positive squares in 4 ways, for example, as 825642756 + 6297057316 = 28734^2 + 79354^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7122700072.

It is not an unprimeable number, because it can be changed into a prime (7122700073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59023 + ... + 133150.

Almost surely, 2^7122700072 is an apocalyptic number.

It is an amenable number.

7122700072 is a deficient number, since it is larger than the sum of its proper divisors (6679236608).

7122700072 is a wasteful number, since it uses less digits than its factorization.

7122700072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192333 (or 192329 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 28.

The square root of 7122700072 is about 84396.0903833821. The cubic root of 7122700072 is about 1924.0434959760.

Adding to 7122700072 its reverse (2700072217), we get a palindrome (9822772289).

The spelling of 7122700072 in words is "seven billion, one hundred twenty-two million, seven hundred thousand, seventy-two".