1121223222 has 40 divisors (see below), whose sum is σ = 2871283536. Its totient is φ = 320349168.

The previous prime is 1121223199. The next prime is 1121223223. The reversal of 1121223222 is 2223221211.

It is a super-2 number, since 2×1121223222² = 2514283027104122568, which contains 22 as substring.

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

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1121223195 and 1121223204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121223223) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 493233 + ... + 495500.

Almost surely, 2^1121223222 is an apocalyptic number.

1121223222 is an abundant number, since it is smaller than the sum of its proper divisors (1750060314).

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

1121223222 is an equidigital number, since it uses as much as digits as its factorization.

1121223222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988754 (or 988745 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 1121223222 is about 33484.6714482911. The cubic root of 1121223222 is about 1038.8767526384.

Adding to 1121223222 its reverse (2223221211), we get a palindrome (3344444433).

The spelling of 1121223222 in words is "one billion, one hundred twenty-one million, two hundred twenty-three thousand, two hundred twenty-two".