1011221122 has 8 divisors (see below), whose sum is σ = 1530747900. Its totient is φ = 500971824.

The previous prime is 1011221111. The next prime is 1011221129. The reversal of 1011221122 is 2211221101.

It can be written as a sum of positive squares in 2 ways, for example, as 831687921 + 179533201 = 28839^2 + 13399^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1011221129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2319097 + ... + 2319532.

Almost surely, 2^1011221122 is an apocalyptic number.

1011221122 is a deficient number, since it is larger than the sum of its proper divisors (519526778).

1011221122 is a wasteful number, since it uses less digits than its factorization.

1011221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4638740.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1011221122 is about 31799.7031747153. The cubic root of 1011221122 is about 1003.7264701708.

Adding to 1011221122 its reverse (2211221101), we get a palindrome (3222442223).

The spelling of 1011221122 in words is "one billion, eleven million, two hundred twenty-one thousand, one hundred twenty-two".