12101022220122 has 48 divisors (see below), whose sum is σ = 28602679727232. Its totient is φ = 3666942639360.

The previous prime is 12101022220117. The next prime is 12101022220153. The reversal of 12101022220122 is 22102222010121.

It is a happy number.

12101022220122 is a `hidden beast` number, since 1 + 210 + 10 + 222 + 201 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12101022220095 and 12101022220104.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 28851658 + ... + 29268074.

It is an arithmetic number, because the mean of its divisors is an integer number (595889160984).

Almost surely, 2^{12101022220122} is an apocalyptic number.

12101022220122 is an abundant number, since it is smaller than the sum of its proper divisors (16501657507110).

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

12101022220122 is a wasteful number, since it uses less digits than its factorization.

12101022220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563203 (or 563200 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12101022220122 its reverse (22102222010121), we get a palindrome (34203244230243).

The spelling of 12101022220122 in words is "twelve trillion, one hundred one billion, twenty-two million, two hundred twenty thousand, one hundred twenty-two".