1131022222 has 16 divisors (see below), whose sum is σ = 1853074944. Its totient is φ = 513459000.

The previous prime is 1131022219. The next prime is 1131022247. The reversal of 1131022222 is 2222201311.

It is a happy number.

It is a super-2 number, since 2×1131022222² = 2558422533315634568, which contains 22 as substring.

1131022222 is a modest number, since divided by 22222 gives 11310 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 1131022196 and 1131022205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13854 + ... + 49537.

It is an arithmetic number, because the mean of its divisors is an integer number (115817184).

Almost surely, 2^1131022222 is an apocalyptic number.

1131022222 is a deficient number, since it is larger than the sum of its proper divisors (722052722).

1131022222 is a wasteful number, since it uses less digits than its factorization.

1131022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64215.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1131022222 is about 33630.6738261368. The cubic root of 1131022222 is about 1041.8944212420.

Adding to 1131022222 its reverse (2222201311), we get a palindrome (3353223533).

Subtracting 1131022222 from its reverse (2222201311), we obtain a square (1091179089 = 33033²).

The spelling of 1131022222 in words is "one billion, one hundred thirty-one million, twenty-two thousand, two hundred twenty-two".