1121322222 has 24 divisors (see below), whose sum is σ = 2495195976. Its totient is φ = 363671856.

The previous prime is 1121322203. The next prime is 1121322247. The reversal of 1121322222 is 2222231211.

1121322222 is a `hidden beast` number, since 1 + 121 + 322 + 222 = 666.

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 = 1121322195 and 1121322204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 841168 + ... + 842499.

It is an arithmetic number, because the mean of its divisors is an integer number (103966499).

Almost surely, 2^1121322222 is an apocalyptic number.

1121322222 is an abundant number, since it is smaller than the sum of its proper divisors (1373873754).

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

1121322222 is a wasteful number, since it uses less digits than its factorization.

1121322222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1683712 (or 1683709 counting only the distinct ones).

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

The square root of 1121322222 is about 33486.1497040194. The cubic root of 1121322222 is about 1038.9073281056.

Adding to 1121322222 its reverse (2222231211), we get a palindrome (3343553433).

The spelling of 1121322222 in words is "one billion, one hundred twenty-one million, three hundred twenty-two thousand, two hundred twenty-two".