30502212225 has 12 divisors (see below), whose sum is σ = 50430324336. Its totient is φ = 16267846480.

The previous prime is 30502212211. The next prime is 30502212227. The reversal of 30502212225 is 52221220503.

It is not a de Polignac number, because 30502212225 - 2⁸ = 30502211969 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30502212195 and 30502212204.

It is not an unprimeable number, because it can be changed into a prime (30502212227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203348007 + ... + 203348156.

It is an arithmetic number, because the mean of its divisors is an integer number (4202527028).

Almost surely, 2^30502212225 is an apocalyptic number.

It is an amenable number.

30502212225 is a deficient number, since it is larger than the sum of its proper divisors (19928112111).

30502212225 is a wasteful number, since it uses less digits than its factorization.

30502212225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406696176 (or 406696171 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 30502212225 its reverse (52221220503), we get a palindrome (82723432728).

The spelling of 30502212225 in words is "thirty billion, five hundred two million, two hundred twelve thousand, two hundred twenty-five".