30223212 has 24 divisors (see below), whose sum is σ = 74669616. Its totient is φ = 9481728.

The previous prime is 30223211. The next prime is 30223261. The reversal of 30223212 is 21232203.

It is a junction number, because it is equal to n+sod(n) for n = 30223191 and 30223200.

It is not an unprimeable number, because it can be changed into a prime (30223211) 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, 73873 + ... + 74280.

It is an arithmetic number, because the mean of its divisors is an integer number (3111234).

Almost surely, 2^30223212 is an apocalyptic number.

It is an amenable number.

30223212 is an abundant number, since it is smaller than the sum of its proper divisors (44446404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30223212 is a wasteful number, since it uses less digits than its factorization.

30223212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148177 (or 148175 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 30223212 is about 5497.5641878927. The cubic root of 30223212 is about 311.4919822702.

Adding to 30223212 its reverse (21232203), we get a palindrome (51455415).

The spelling of 30223212 in words is "thirty million, two hundred twenty-three thousand, two hundred twelve".