2224521155 has 4 divisors (see below), whose sum is σ = 2669425392. Its totient is φ = 1779616920.

The previous prime is 2224521151. The next prime is 2224521227. The reversal of 2224521155 is 5511254222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2224521155 - 2² = 2224521151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2224521151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222452111 + ... + 222452120.

It is an arithmetic number, because the mean of its divisors is an integer number (667356348).

Almost surely, 2^2224521155 is an apocalyptic number.

2224521155 is a deficient number, since it is larger than the sum of its proper divisors (444904237).

2224521155 is an equidigital number, since it uses as much as digits as its factorization.

2224521155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444904236.

The product of its digits is 8000, while the sum is 29.

The square root of 2224521155 is about 47164.8296403157. The cubic root of 2224521155 is about 1305.4057261775.

Adding to 2224521155 its reverse (5511254222), we get a palindrome (7735775377).

The spelling of 2224521155 in words is "two billion, two hundred twenty-four million, five hundred twenty-one thousand, one hundred fifty-five".