30212111212 has 6 divisors (see below), whose sum is σ = 52871194628. Its totient is φ = 15106055604.

The previous prime is 30212111159. The next prime is 30212111233. The reversal of 30212111212 is 21211121203.

It is a super-2 number, since 2×30212111212² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3776513898 + ... + 3776513905.

Almost surely, 2^30212111212 is an apocalyptic number.

It is an amenable number.

30212111212 is a deficient number, since it is larger than the sum of its proper divisors (22659083416).

30212111212 is a wasteful number, since it uses less digits than its factorization.

30212111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7553027807 (or 7553027805 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 30212111212 its reverse (21211121203), we get a palindrome (51423232415).

Subtracting from 30212111212 its reverse (21211121203), we obtain a palindrome (9000990009).

The spelling of 30212111212 in words is "thirty billion, two hundred twelve million, one hundred eleven thousand, two hundred twelve".