720181122 has 16 divisors (see below), whose sum is σ = 1441270272. Its totient is φ = 239909040.

The previous prime is 720181087. The next prime is 720181127. The reversal of 720181122 is 221181027.

720181122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 720181092 and 720181101.

It is not an unprimeable number, because it can be changed into a prime (720181127) 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, 27298 + ... + 46749.

It is an arithmetic number, because the mean of its divisors is an integer number (90079392).

Almost surely, 2^720181122 is an apocalyptic number.

720181122 is an abundant number, since it is smaller than the sum of its proper divisors (721089150).

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

720181122 is a wasteful number, since it uses less digits than its factorization.

720181122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75673.

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 720181122 is about 26836.1905269731. The cubic root of 720181122 is about 896.3560986576.

The spelling of 720181122 in words is "seven hundred twenty million, one hundred eighty-one thousand, one hundred twenty-two".