12210211210122 has 12 divisors (see below), whose sum is σ = 26455457621970. Its totient is φ = 4070070403368.

The previous prime is 12210211210121. The next prime is 12210211210151. The reversal of 12210211210122 is 22101211201221.

12210211210122 is a `hidden beast` number, since 1 + 221 + 0 + 211 + 210 + 1 + 22 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11851157387601 + 359053822521 = 3442551^2 + 599211^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 678345067229 = 12210211210122 / (1 + 2 + 2 + 1 + 0 + 2 + 1 + 1 + 2 + 1 + 0 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 12210211210095 and 12210211210104.

It is not an unprimeable number, because it can be changed into a prime (12210211210121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 339172533597 + ... + 339172533632.

Almost surely, 2^{12210211210122} is an apocalyptic number.

12210211210122 is an abundant number, since it is smaller than the sum of its proper divisors (14245246411848).

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

12210211210122 is a wasteful number, since it uses less digits than its factorization.

12210211210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678345067237 (or 678345067234 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12210211210122 its reverse (22101211201221), we get a palindrome (34311422411343).

The spelling of 12210211210122 in words is "twelve trillion, two hundred ten billion, two hundred eleven million, two hundred ten thousand, one hundred twenty-two".