30210011221 has 16 divisors (see below), whose sum is σ = 33618500608. Its totient is φ = 26958355200.

The previous prime is 30210011213. The next prime is 30210011261. The reversal of 30210011221 is 12211001203.

It is a cyclic number.

It is not a de Polignac number, because 30210011221 - 2³ = 30210011213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30210011261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 350941 + ... + 428461.

It is an arithmetic number, because the mean of its divisors is an integer number (2101156288).

Almost surely, 2^30210011221 is an apocalyptic number.

30210011221 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

30210011221 is a deficient number, since it is larger than the sum of its proper divisors (3408489387).

30210011221 is a wasteful number, since it uses less digits than its factorization.

30210011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78532.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 30210011221 its reverse (12211001203), we get a palindrome (42421012424).

The spelling of 30210011221 in words is "thirty billion, two hundred ten million, eleven thousand, two hundred twenty-one".