30202210021 has 2 divisors, whose sum is σ = 30202210022. Its totient is φ = 30202210020.

The previous prime is 30202210001. The next prime is 30202210033. The reversal of 30202210021 is 12001220203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16696516225 + 13505693796 = 129215^2 + 116214^2 .

It is a cyclic number.

It is not a de Polignac number, because 30202210021 - 2²¹ = 30200112869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30202209983 and 30202210010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30202210001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15101105010 + 15101105011.

It is an arithmetic number, because the mean of its divisors is an integer number (15101105011).

Almost surely, 2^30202210021 is an apocalyptic number.

It is an amenable number.

30202210021 is a deficient number, since it is larger than the sum of its proper divisors (1).

30202210021 is an equidigital number, since it uses as much as digits as its factorization.

30202210021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 30202210021 its reverse (12001220203), we get a palindrome (42203430224).

The spelling of 30202210021 in words is "thirty billion, two hundred two million, two hundred ten thousand, twenty-one".