12101120221874 has 4 divisors (see below), whose sum is σ = 18151680332814. Its totient is φ = 6050560110936.

The previous prime is 12101120221873. The next prime is 12101120221889. The reversal of 12101120221874 is 47812202110121.

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., 10158288460849 + 1942831761025 = 3187207^2 + 1393855^2 .

It is a super-2 number, since 2×12101120221874² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12101120221874.

It is not an unprimeable number, because it can be changed into a prime (12101120221873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3025280055467 + ... + 3025280055470.

Almost surely, 2^{12101120221874} is an apocalyptic number.

12101120221874 is a deficient number, since it is larger than the sum of its proper divisors (6050560110940).

12101120221874 is an equidigital number, since it uses as much as digits as its factorization.

12101120221874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6050560110939.

The product of its (nonzero) digits is 3584, while the sum is 32.

Adding to 12101120221874 its reverse (47812202110121), we get a palindrome (59913322331995).

The spelling of 12101120221874 in words is "twelve trillion, one hundred one billion, one hundred twenty million, two hundred twenty-one thousand, eight hundred seventy-four".