1100121122 has 4 divisors (see below), whose sum is σ = 1650181686. Its totient is φ = 550060560.

The previous prime is 1100121107. The next prime is 1100121163. The reversal of 1100121122 is 2211210011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 869719081 + 230402041 = 29491^2 + 15179^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275030279 + ... + 275030282.

Almost surely, 2^1100121122 is an apocalyptic number.

1100121122 is a deficient number, since it is larger than the sum of its proper divisors (550060564).

1100121122 is an equidigital number, since it uses as much as digits as its factorization.

1100121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550060563.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1100121122 is about 33168.0738361455. The cubic root of 1100121122 is about 1032.3180024998.

Adding to 1100121122 its reverse (2211210011), we get a palindrome (3311331133).

Subtracting 1100121122 from its reverse (2211210011), we obtain a square (1111088889 = 33333²).

It can be divided in two parts, 11001 and 21122, that added together give a palindrome (32123).

The spelling of 1100121122 in words is "one billion, one hundred million, one hundred twenty-one thousand, one hundred twenty-two".