1123102221 has 8 divisors (see below), whose sum is σ = 1506437184. Its totient is φ = 744251040.

The previous prime is 1123102219. The next prime is 1123102223. The reversal of 1123102221 is 1222013211.

It is an interprime number because it is at equal distance from previous prime (1123102219) and next prime (1123102223).

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

It is not a de Polignac number, because 1123102221 - 2¹ = 1123102219 is a prime.

It is a super-2 number, since 2×1123102221² = 2522717197630265682, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1123102221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123102223) 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, 1120360 + ... + 1121361.

It is an arithmetic number, because the mean of its divisors is an integer number (188304648).

Almost surely, 2^1123102221 is an apocalyptic number.

It is an amenable number.

1123102221 is a deficient number, since it is larger than the sum of its proper divisors (383334963).

1123102221 is a wasteful number, since it uses less digits than its factorization.

1123102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2241891.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1123102221 is about 33512.7173025405. The cubic root of 1123102221 is about 1039.4567617184.

Adding to 1123102221 its reverse (1222013211), we get a palindrome (2345115432).

The spelling of 1123102221 in words is "one billion, one hundred twenty-three million, one hundred two thousand, two hundred twenty-one".