202000121230221 has 12 divisors (see below), whose sum is σ = 291782188402848. Its totient is φ = 134664792633864.

The previous prime is 202000121230189. The next prime is 202000121230223. The reversal of 202000121230221 is 122032121000202.

202000121230221 is a `hidden beast` number, since 2 + 0 + 200 + 0 + 1 + 212 + 30 + 221 = 666.

It is not a de Polignac number, because 202000121230221 - 2⁵ = 202000121230189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202000121230194 and 202000121230203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202000121230223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 162249835 + ... + 163490088.

It is an arithmetic number, because the mean of its divisors is an integer number (24315182366904).

Almost surely, 2^{202000121230221} is an apocalyptic number.

It is an amenable number.

202000121230221 is a deficient number, since it is larger than the sum of its proper divisors (89782067172627).

202000121230221 is a wasteful number, since it uses less digits than its factorization.

202000121230221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325808832 (or 325808829 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 202000121230221 its reverse (122032121000202), we get a palindrome (324032242230423).

The spelling of 202000121230221 in words is "two hundred two trillion, one hundred twenty-one million, two hundred thirty thousand, two hundred twenty-one".