2242245521 has 4 divisors (see below), whose sum is σ = 2242377072. Its totient is φ = 2242113972.

The previous prime is 2242245479. The next prime is 2242245539. The reversal of 2242245521 is 1255422422.

It is a happy number.

2242245521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2242245521 - 2⁶ = 2242245457 is a prime.

It is a super-2 number, since 2×2242245521² = 10055329952889122882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2242248521) 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, 35591 + ... + 75836.

It is an arithmetic number, because the mean of its divisors is an integer number (560594268).

Almost surely, 2^2242245521 is an apocalyptic number.

It is an amenable number.

2242245521 is a deficient number, since it is larger than the sum of its proper divisors (131551).

2242245521 is a wasteful number, since it uses less digits than its factorization.

2242245521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131550.

The product of its digits is 12800, while the sum is 29.

The square root of 2242245521 is about 47352.3549678366. The cubic root of 2242245521 is about 1308.8635952068.

Adding to 2242245521 its reverse (1255422422), we get a palindrome (3497667943).

The spelling of 2242245521 in words is "two billion, two hundred forty-two million, two hundred forty-five thousand, five hundred twenty-one".