30220021001 has 2 divisors, whose sum is σ = 30220021002. Its totient is φ = 30220021000.

The previous prime is 30220020989. The next prime is 30220021019. The reversal of 30220021001 is 10012002203.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22462815376 + 7757205625 = 149876^2 + 88075^2 .

It is a cyclic number.

It is not a de Polignac number, because 30220021001 - 2³⁰ = 29146279177 is a prime.

It is not a weakly prime, because it can be changed into another prime (30220021801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15110010500 + 15110010501.

It is an arithmetic number, because the mean of its divisors is an integer number (15110010501).

Almost surely, 2^30220021001 is an apocalyptic number.

It is an amenable number.

30220021001 is a deficient number, since it is larger than the sum of its proper divisors (1).

30220021001 is an equidigital number, since it uses as much as digits as its factorization.

30220021001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 30220021001 its reverse (10012002203), we get a palindrome (40232023204).

The spelling of 30220021001 in words is "thirty billion, two hundred twenty million, twenty-one thousand, one".