1123025221 has 8 divisors (see below), whose sum is σ = 1157463584. Its totient is φ = 1088802000.

The previous prime is 1123025213. The next prime is 1123025227. The reversal of 1123025221 is 1225203211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1123025221 - 2³ = 1123025213 is a prime.

It is a super-2 number, since 2×1123025221² = 2522371294004197682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123025227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43155 + ... + 64096.

It is an arithmetic number, because the mean of its divisors is an integer number (144682948).

Almost surely, 2^1123025221 is an apocalyptic number.

It is an amenable number.

1123025221 is a deficient number, since it is larger than the sum of its proper divisors (34438363).

1123025221 is a wasteful number, since it uses less digits than its factorization.

1123025221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107571.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1123025221 is about 33511.5684652330. The cubic root of 1123025221 is about 1039.4330060892.

Adding to 1123025221 its reverse (1225203211), we get a palindrome (2348228432).

The spelling of 1123025221 in words is "one billion, one hundred twenty-three million, twenty-five thousand, two hundred twenty-one".