12210212020122 has 48 divisors (see below), whose sum is σ = 26574396563520. Its totient is φ = 4051779740736.

The previous prime is 12210212020099. The next prime is 12210212020133. The reversal of 12210212020122 is 22102021201221.

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 = 12210212020095 and 12210212020104.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20538529 + ... + 21124667.

It is an arithmetic number, because the mean of its divisors is an integer number (553633261740).

Almost surely, 2^{12210212020122} is an apocalyptic number.

12210212020122 is an abundant number, since it is smaller than the sum of its proper divisors (14364184543398).

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

12210212020122 is a wasteful number, since it uses less digits than its factorization.

12210212020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591347 (or 591344 counting only the distinct ones).

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

Adding to 12210212020122 its reverse (22102021201221), we get a palindrome (34312233221343).

The spelling of 12210212020122 in words is "twelve trillion, two hundred ten billion, two hundred twelve million, twenty thousand, one hundred twenty-two".