30310002221 has 8 divisors (see below), whose sum is σ = 30400081920. Its totient is φ = 30219980272.

The previous prime is 30310002211. The next prime is 30310002251. The reversal of 30310002221 is 12220001303.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30310002221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30310002196 and 30310002205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30310002211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1181891 + ... + 1207263.

It is an arithmetic number, because the mean of its divisors is an integer number (3800010240).

Almost surely, 2^30310002221 is an apocalyptic number.

It is an amenable number.

30310002221 is a deficient number, since it is larger than the sum of its proper divisors (90079699).

30310002221 is a wasteful number, since it uses less digits than its factorization.

30310002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28875.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 30310002221 its reverse (12220001303), we get a palindrome (42530003524).

The spelling of 30310002221 in words is "thirty billion, three hundred ten million, two thousand, two hundred twenty-one".