30212125 has 16 divisors (see below), whose sum is σ = 37889280. Its totient is φ = 24051600.

The previous prime is 30212093. The next prime is 30212129. The reversal of 30212125 is 52121203.

It is not a de Polignac number, because 30212125 - 2⁵ = 30212093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30212099 and 30212108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30212129) 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, 32416 + ... + 33334.

It is an arithmetic number, because the mean of its divisors is an integer number (2368080).

Almost surely, 2^30212125 is an apocalyptic number.

It is an amenable number.

30212125 is a deficient number, since it is larger than the sum of its proper divisors (7677155).

30212125 is an equidigital number, since it uses as much as digits as its factorization.

30212125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197 (or 1187 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 30212125 is about 5496.5557397337. Note that the first 3 decimals coincide. The cubic root of 30212125 is about 311.4538886577.

Adding to 30212125 its reverse (52121203), we get a palindrome (82333328).

The spelling of 30212125 in words is "thirty million, two hundred twelve thousand, one hundred twenty-five".