30421103440221 has 16 divisors (see below), whose sum is σ = 48535093808320. Its totient is φ = 18720679039920.

The previous prime is 30421103440193. The next prime is 30421103440267. The reversal of 30421103440221 is 12204430112403.

30421103440221 is a `hidden beast` number, since 3 + 0 + 4 + 211 + 0 + 3 + 440 + 2 + 2 + 1 = 666.

It is not a de Polignac number, because 30421103440221 - 2⁷ = 30421103440093 is a prime.

It is a super-2 number, since 2×30421103440221² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30421103445221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43334904835 + ... + 43334905536.

It is an arithmetic number, because the mean of its divisors is an integer number (3033443363020).

Almost surely, 2^{30421103440221} is an apocalyptic number.

It is an amenable number.

30421103440221 is a deficient number, since it is larger than the sum of its proper divisors (18113990368099).

30421103440221 is a wasteful number, since it uses less digits than its factorization.

30421103440221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86669810393 (or 86669810387 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 30421103440221 its reverse (12204430112403), we get a palindrome (42625533552624).

The spelling of 30421103440221 in words is "thirty trillion, four hundred twenty-one billion, one hundred three million, four hundred forty thousand, two hundred twenty-one".