2220500709 has 48 divisors (see below), whose sum is σ = 3879075200. Its totient is φ = 1268809920.

The previous prime is 2220500699. The next prime is 2220500749. The reversal of 2220500709 is 9070050222.

It is a happy number.

It is not a de Polignac number, because 2220500709 - 2⁹ = 2220500197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220500749) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 70029 + ... + 96669.

Almost surely, 2^2220500709 is an apocalyptic number.

It is an amenable number.

2220500709 is a deficient number, since it is larger than the sum of its proper divisors (1658574491).

2220500709 is an frugal number, since it uses more digits than its factorization.

2220500709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26677 (or 26651 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 2220500709 is about 47122.1891363294. The cubic root of 2220500709 is about 1304.6188185158.

The spelling of 2220500709 in words is "two billion, two hundred twenty million, five hundred thousand, seven hundred nine".