12121122200022 has 96 divisors (see below), whose sum is σ = 28676453704704. Its totient is φ = 3669667934400.

The previous prime is 12121122200009. The next prime is 12121122200039. The reversal of 12121122200022 is 22000222112121.

It is a happy number.

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 = 12121122199968 and 12121122200004.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 1532956993 + ... + 1532964899.

It is an arithmetic number, because the mean of its divisors is an integer number (298713059424).

Almost surely, 2^{12121122200022} is an apocalyptic number.

12121122200022 is an abundant number, since it is smaller than the sum of its proper divisors (16555331504682).

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

12121122200022 is a wasteful number, since it uses less digits than its factorization.

12121122200022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14114 (or 14111 counting only the distinct ones).

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

Adding to 12121122200022 its reverse (22000222112121), we get a palindrome (34121344312143).

The spelling of 12121122200022 in words is "twelve trillion, one hundred twenty-one billion, one hundred twenty-two million, two hundred thousand, twenty-two".