200212010020121 has 4 divisors (see below), whose sum is σ = 218413101840144. Its totient is φ = 182010918200100.

The previous prime is 200212010020013. The next prime is 200212010020129. The reversal of 200212010020121 is 121020010212002.

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 not a de Polignac number, because 200212010020121 - 2²² = 200212005825817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200212010020096 and 200212010020105.

It is not an unprimeable number, because it can be changed into a prime (200212010020129) 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, 9100545909995 + ... + 9100545910016.

It is an arithmetic number, because the mean of its divisors is an integer number (54603275460036).

Almost surely, 2^{200212010020121} is an apocalyptic number.

It is an amenable number.

200212010020121 is a deficient number, since it is larger than the sum of its proper divisors (18201091820023).

200212010020121 is a wasteful number, since it uses less digits than its factorization.

200212010020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18201091820022.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 200212010020121 its reverse (121020010212002), we get a palindrome (321232020232123).

The spelling of 200212010020121 in words is "two hundred trillion, two hundred twelve billion, ten million, twenty thousand, one hundred twenty-one".