12121110101022 has 32 divisors (see below), whose sum is σ = 26196108831648. Its totient is φ = 3716843415936.

The previous prime is 12121110101021. The next prime is 12121110101083. The reversal of 12121110101022 is 22010101112121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12121110100992 and 12121110101010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121110101021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265162893 + ... + 265208600.

It is an arithmetic number, because the mean of its divisors is an integer number (818628400989).

Almost surely, 2^{12121110101022} is an apocalyptic number.

12121110101022 is an abundant number, since it is smaller than the sum of its proper divisors (14074998730626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12121110101022 is a wasteful number, since it uses less digits than its factorization.

12121110101022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530371804.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12121110101022 its reverse (22010101112121), we get a palindrome (34131211213143).

The spelling of 12121110101022 in words is "twelve trillion, one hundred twenty-one billion, one hundred ten million, one hundred one thousand, twenty-two".