12200021210122 has 8 divisors (see below), whose sum is σ = 18301159476900. Its totient is φ = 6099634717824.

The previous prime is 12200021210107. The next prime is 12200021210123. The reversal of 12200021210122 is 22101212000221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11043598422481 + 1156422787641 = 3323191^2 + 1075371^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12200021210096 and 12200021210105.

It is not an unprimeable number, because it can be changed into a prime (12200021210123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187903047 + ... + 187967962.

Almost surely, 2^{12200021210122} is an apocalyptic number.

12200021210122 is a deficient number, since it is larger than the sum of its proper divisors (6101138266778).

12200021210122 is a wasteful number, since it uses less digits than its factorization.

12200021210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375887240.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12200021210122 its reverse (22101212000221), we get a palindrome (34301233210343).

The spelling of 12200021210122 in words is "twelve trillion, two hundred billion, twenty-one million, two hundred ten thousand, one hundred twenty-two".