1100222012 has 6 divisors (see below), whose sum is σ = 1925388528. Its totient is φ = 550111004.

The previous prime is 1100222009. The next prime is 1100222017. The reversal of 1100222012 is 2102220011.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1100221984 and 1100222002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100222017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137527748 + ... + 137527755.

It is an arithmetic number, because the mean of its divisors is an integer number (320898088).

Almost surely, 2^1100222012 is an apocalyptic number.

It is an amenable number.

1100222012 is a deficient number, since it is larger than the sum of its proper divisors (825166516).

1100222012 is a wasteful number, since it uses less digits than its factorization.

1100222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275055507 (or 275055505 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1100222012 is about 33169.5946915243. The cubic root of 1100222012 is about 1032.3495588371.

Adding to 1100222012 its reverse (2102220011), we get a palindrome (3202442023).

The spelling of 1100222012 in words is "one billion, one hundred million, two hundred twenty-two thousand, twelve".