12121122010022 has 4 divisors (see below), whose sum is σ = 18181683015036. Its totient is φ = 6060561005010.

The previous prime is 12121122009889. The next prime is 12121122010027. The reversal of 12121122010022 is 22001022112121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121122010027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3030280502504 + ... + 3030280502507.

It is an arithmetic number, because the mean of its divisors is an integer number (4545420753759).

Almost surely, 2^{12121122010022} is an apocalyptic number.

12121122010022 is a deficient number, since it is larger than the sum of its proper divisors (6060561005014).

12121122010022 is an equidigital number, since it uses as much as digits as its factorization.

12121122010022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6060561005013.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12121122010022 its reverse (22001022112121), we get a palindrome (34122144122143).

The spelling of 12121122010022 in words is "twelve trillion, one hundred twenty-one billion, one hundred twenty-two million, ten thousand, twenty-two".