1121212122 has 8 divisors (see below), whose sum is σ = 2242424256. Its totient is φ = 373737372.

The previous prime is 1121212109. The next prime is 1121212129. The reversal of 1121212122 is 2212121211.

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

1121212122 is an admirable number.

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

It is not an unprimeable number, because it can be changed into a prime (1121212129) 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, 93434338 + ... + 93434349.

It is an arithmetic number, because the mean of its divisors is an integer number (280303032).

Almost surely, 2^1121212122 is an apocalyptic number.

1121212122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1121212122 is a wasteful number, since it uses less digits than its factorization.

1121212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186868692.

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

The square root of 1121212122 is about 33484.5057003982. The cubic root of 1121212122 is about 1038.8733243678.

Adding to 1121212122 its reverse (2212121211), we get a palindrome (3333333333).

The spelling of 1121212122 in words is "one billion, one hundred twenty-one million, two hundred twelve thousand, one hundred twenty-two".