30012213 has 32 divisors (see below), whose sum is σ = 50245632. Its totient is φ = 15480000.

The previous prime is 30012211. The next prime is 30012223. The reversal of 30012213 is 31221003.

It is a happy number.

It is not a de Polignac number, because 30012213 - 2¹ = 30012211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30012211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39588 + ... + 40338.

It is an arithmetic number, because the mean of its divisors is an integer number (1570176).

Almost surely, 2^30012213 is an apocalyptic number.

30012213 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

30012213 is a deficient number, since it is larger than the sum of its proper divisors (20233419).

30012213 is a wasteful number, since it uses less digits than its factorization.

30012213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 30012213 is about 5478.3403508727. The cubic root of 30012213 is about 310.7654100200.

Adding to 30012213 its reverse (31221003), we get a palindrome (61233216).

The spelling of 30012213 in words is "thirty million, twelve thousand, two hundred thirteen".