2220500345 has 32 divisors (see below), whose sum is σ = 3170797056. Its totient is φ = 1461081600.

The previous prime is 2220500329. The next prime is 2220500357. The reversal of 2220500345 is 5430050222.

It is not a de Polignac number, because 2220500345 - 2⁴ = 2220500329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2220500345.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74852 + ... + 100218.

It is an arithmetic number, because the mean of its divisors is an integer number (99087408).

Almost surely, 2^2220500345 is an apocalyptic number.

It is an amenable number.

2220500345 is a deficient number, since it is larger than the sum of its proper divisors (950296711).

2220500345 is a wasteful number, since it uses less digits than its factorization.

2220500345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25481.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 2220500345 is about 47122.1852740299. The cubic root of 2220500345 is about 1304.6187472284.

Adding to 2220500345 its reverse (5430050222), we get a palindrome (7650550567).

The spelling of 2220500345 in words is "two billion, two hundred twenty million, five hundred thousand, three hundred forty-five".