7215122706 has 16 divisors (see below), whose sum is σ = 15742086048. Its totient is φ = 2186400800.

The previous prime is 7215122669. The next prime is 7215122713. The reversal of 7215122706 is 6072215127.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54659955 + ... + 54660086.

It is an arithmetic number, because the mean of its divisors is an integer number (983880378).

Almost surely, 2^7215122706 is an apocalyptic number.

7215122706 is an abundant number, since it is smaller than the sum of its proper divisors (8526963342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7215122706 is a wasteful number, since it uses less digits than its factorization.

7215122706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109320057.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 7215122706 is about 84941.8783992914. The cubic root of 7215122706 is about 1932.3297508431.

It can be divided in two parts, 7215 and 122706, that added together give a palindrome (129921).

The spelling of 7215122706 in words is "seven billion, two hundred fifteen million, one hundred twenty-two thousand, seven hundred six".