12200121002122 has 8 divisors (see below), whose sum is σ = 18371388435876. Its totient is φ = 6076324856832.

The previous prime is 12200121002117. The next prime is 12200121002171. The reversal of 12200121002122 is 22120012100221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12162314477401 + 37806524721 = 3487451^2 + 194439^2 .

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 = 12200121002096 and 12200121002105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11867821473 + ... + 11867822500.

Almost surely, 2^{12200121002122} is an apocalyptic number.

12200121002122 is a deficient number, since it is larger than the sum of its proper divisors (6171267433754).

12200121002122 is a wasteful number, since it uses less digits than its factorization.

12200121002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23735644232.

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

Adding to 12200121002122 its reverse (22120012100221), we get a palindrome (34320133102343).

The spelling of 12200121002122 in words is "twelve trillion, two hundred billion, one hundred twenty-one million, two thousand, one hundred twenty-two".