30202113012221 has 2 divisors, whose sum is σ = 30202113012222. Its totient is φ = 30202113012220.

The previous prime is 30202113012199. The next prime is 30202113012229. The reversal of 30202113012221 is 12221031120203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21034964059321 + 9167148952900 = 4586389^2 + 3027730^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30202113012221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30202113012193 and 30202113012202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30202113012229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15101056506110 + 15101056506111.

It is an arithmetic number, because the mean of its divisors is an integer number (15101056506111).

Almost surely, 2^{30202113012221} is an apocalyptic number.

It is an amenable number.

30202113012221 is a deficient number, since it is larger than the sum of its proper divisors (1).

30202113012221 is an equidigital number, since it uses as much as digits as its factorization.

30202113012221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 30202113012221 its reverse (12221031120203), we get a palindrome (42423144132424).

The spelling of 30202113012221 in words is "thirty trillion, two hundred two billion, one hundred thirteen million, twelve thousand, two hundred twenty-one".