30211220212 has 12 divisors (see below), whose sum is σ = 53249993440. Its totient is φ = 14996936376.

The previous prime is 30211220201. The next prime is 30211220213. The reversal of 30211220212 is 21202211203.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30211220213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27167808 + ... + 27168919.

Almost surely, 2^30211220212 is an apocalyptic number.

It is an amenable number.

30211220212 is a deficient number, since it is larger than the sum of its proper divisors (23038773228).

30211220212 is a wasteful number, since it uses less digits than its factorization.

30211220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54336870 (or 54336868 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 30211220212 its reverse (21202211203), we get a palindrome (51413431415).

Subtracting from 30211220212 its reverse (21202211203), we obtain a palindrome (9009009009).

The spelling of 30211220212 in words is "thirty billion, two hundred eleven million, two hundred twenty thousand, two hundred twelve".