212002200112121 has 4 divisors (see below), whose sum is σ = 215595457741200. Its totient is φ = 208408942483044.

The previous prime is 212002200112037. The next prime is 212002200112141. The reversal of 212002200112121 is 121211002200212.

212002200112121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212002200112121 - 2¹⁴ = 212002200095737 is a prime.

It is a super-2 number, since 2×212002200112121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212002200112121.

It is not an unprimeable number, because it can be changed into a prime (212002200112141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1796628814451 + ... + 1796628814568.

It is an arithmetic number, because the mean of its divisors is an integer number (53898864435300).

Almost surely, 2^{212002200112121} is an apocalyptic number.

It is an amenable number.

212002200112121 is a deficient number, since it is larger than the sum of its proper divisors (3593257629079).

212002200112121 is an equidigital number, since it uses as much as digits as its factorization.

212002200112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3593257629078.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212002200112121 its reverse (121211002200212), we get a palindrome (333213202312333).

The spelling of 212002200112121 in words is "two hundred twelve trillion, two billion, two hundred million, one hundred twelve thousand, one hundred twenty-one".