212200122121121 has 8 divisors (see below), whose sum is σ = 228121071934080. Its totient is φ = 196754424541488.

The previous prime is 212200122121093. The next prime is 212200122121123. The reversal of 212200122121121 is 121121221002212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212200122121121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212200122121093 and 212200122121102.

It is not an unprimeable number, because it can be changed into a prime (212200122121123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118813057406 + ... + 118813059191.

It is an arithmetic number, because the mean of its divisors is an integer number (28515133991760).

Almost surely, 2^{212200122121121} is an apocalyptic number.

It is an amenable number.

212200122121121 is a deficient number, since it is larger than the sum of its proper divisors (15920949812959).

212200122121121 is a wasteful number, since it uses less digits than its factorization.

212200122121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237626116663.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 212200122121121 its reverse (121121221002212), we get a palindrome (333321343123333).

The spelling of 212200122121121 in words is "two hundred twelve trillion, two hundred billion, one hundred twenty-two million, one hundred twenty-one thousand, one hundred twenty-one".