1211121122 has 8 divisors (see below), whose sum is σ = 1816865472. Its totient is φ = 605499300.

The previous prime is 1211121091. The next prime is 1211121139. The reversal of 1211121122 is 2211211121.

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

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

It is a junction number, because it is equal to n+sod(n) for n = 1211121097 and 1211121106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347 + ... + 49217.

It is an arithmetic number, because the mean of its divisors is an integer number (227108184).

Almost surely, 2^1211121122 is an apocalyptic number.

1211121122 is a deficient number, since it is larger than the sum of its proper divisors (605744350).

1211121122 is a wasteful number, since it uses less digits than its factorization.

1211121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61264.

The product of its digits is 16, while the sum is 14.

The square root of 1211121122 is about 34801.1655264590. The cubic root of 1211121122 is about 1065.9312453969.

Adding to 1211121122 its reverse (2211211121), we get a palindrome (3422332243).

It can be divided in two parts, 12111 and 21122, that added together give a palindrome (33233).

The spelling of 1211121122 in words is "one billion, two hundred eleven million, one hundred twenty-one thousand, one hundred twenty-two".