12101021122 has 4 divisors (see below), whose sum is σ = 18151531686. Its totient is φ = 6050510560.

The previous prime is 12101021113. The next prime is 12101021159. The reversal of 12101021122 is 22112010121.

12101021122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 8734584681 + 3366436441 = 93459^2 + 58021^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3025255279 + ... + 3025255282.

Almost surely, 2^12101021122 is an apocalyptic number.

12101021122 is a deficient number, since it is larger than the sum of its proper divisors (6050510564).

12101021122 is an equidigital number, since it uses as much as digits as its factorization.

12101021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6050510563.

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

Adding to 12101021122 its reverse (22112010121), we get a palindrome (34213031243).

The spelling of 12101021122 in words is "twelve billion, one hundred one million, twenty-one thousand, one hundred twenty-two".