1121221122 has 32 divisors (see below), whose sum is σ = 2697676800. Its totient is φ = 303488208.

The previous prime is 1121221117. The next prime is 1121221139. The reversal of 1121221122 is 2211221211.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 701722 + ... + 703317.

It is an arithmetic number, because the mean of its divisors is an integer number (84302400).

Almost surely, 2^1121221122 is an apocalyptic number.

1121221122 is an abundant number, since it is smaller than the sum of its proper divisors (1576455678).

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

1121221122 is a wasteful number, since it uses less digits than its factorization.

1121221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405070.

The product of its digits is 32, while the sum is 15.

The square root of 1121221122 is about 33484.6400906445. The cubic root of 1121221122 is about 1038.8761040484.

Adding to 1121221122 its reverse (2211221211), we get a palindrome (3332442333).

The spelling of 1121221122 in words is "one billion, one hundred twenty-one million, two hundred twenty-one thousand, one hundred twenty-two".