2572221018 has 32 divisors (see below), whose sum is σ = 5274460800. Its totient is φ = 835773440.

The previous prime is 2572221017. The next prime is 2572221037. The reversal of 2572221018 is 8101222752.

2572221018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2572221017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332458 + ... + 340106.

It is an arithmetic number, because the mean of its divisors is an integer number (164826900).

Almost surely, 2^2572221018 is an apocalyptic number.

2572221018 is an abundant number, since it is smaller than the sum of its proper divisors (2702239782).

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

2572221018 is a wasteful number, since it uses less digits than its factorization.

2572221018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9062.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 2572221018 is about 50717.0683103825. The cubic root of 2572221018 is about 1370.1541407543.

The spelling of 2572221018 in words is "two billion, five hundred seventy-two million, two hundred twenty-one thousand, eighteen".