1023222222 has 48 divisors (see below), whose sum is σ = 2438570160. Its totient is φ = 310060080.

The previous prime is 1023222203. The next prime is 1023222227. The reversal of 1023222222 is 2222223201.

It is a Harshad number since it is a multiple of its sum of digits (18).

1023222222 is a modest number, since divided by 22222 gives 10232 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 1023222195 and 1023222204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023222227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2604 + ... + 45312.

It is an arithmetic number, because the mean of its divisors is an integer number (50803545).

Almost surely, 2^1023222222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1023222222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1219285080).

1023222222 is an abundant number, since it is smaller than the sum of its proper divisors (1415347938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1023222222 is a wasteful number, since it uses less digits than its factorization.

1023222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42750 (or 42725 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1023222222 is about 31987.8449102155. The cubic root of 1023222222 is about 1007.6815828631.

Adding to 1023222222 its reverse (2222223201), we get a palindrome (3245445423).

It can be divided in two parts, 10 and 23222222, that added together give a palindrome (23222232).

The spelling of 1023222222 in words is "one billion, twenty-three million, two hundred twenty-two thousand, two hundred twenty-two".