30213120212 has 48 divisors (see below), whose sum is σ = 58021996032. Its totient is φ = 13651898880.

The previous prime is 30213120193. The next prime is 30213120241. The reversal of 30213120212 is 21202131203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8407088 + ... + 8410680.

It is an arithmetic number, because the mean of its divisors is an integer number (1208791584).

Almost surely, 2^30213120212 is an apocalyptic number.

It is an amenable number.

30213120212 is a deficient number, since it is larger than the sum of its proper divisors (27808875820).

30213120212 is a wasteful number, since it uses less digits than its factorization.

30213120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4688 (or 4686 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 30213120212 its reverse (21202131203), we get a palindrome (51415251415).

The spelling of 30213120212 in words is "thirty billion, two hundred thirteen million, one hundred twenty thousand, two hundred twelve".