202030200221 has 2 divisors, whose sum is σ = 202030200222. Its totient is φ = 202030200220.

The previous prime is 202030200217. The next prime is 202030200233. The reversal of 202030200221 is 122002030202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118257580996 + 83772619225 = 343886^2 + 289435^2 .

It is a cyclic number.

It is not a de Polignac number, because 202030200221 - 2² = 202030200217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202030200196 and 202030200205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202030220221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101015100110 + 101015100111.

It is an arithmetic number, because the mean of its divisors is an integer number (101015100111).

Almost surely, 2^202030200221 is an apocalyptic number.

It is an amenable number.

202030200221 is a deficient number, since it is larger than the sum of its proper divisors (1).

202030200221 is an equidigital number, since it uses as much as digits as its factorization.

202030200221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 202030200221 its reverse (122002030202), we get a palindrome (324032230423).

The spelling of 202030200221 in words is "two hundred two billion, thirty million, two hundred thousand, two hundred twenty-one".