30212112212 has 6 divisors (see below), whose sum is σ = 52871196378. Its totient is φ = 15106056104.

The previous prime is 30212112199. The next prime is 30212112221. The reversal of 30212112212 is 21221121203.

It can be written as a sum of positive squares in only one way, i.e., 25086124996 + 5125987216 = 158386^2 + 71596^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3776514023 + ... + 3776514030.

It is an arithmetic number, because the mean of its divisors is an integer number (8811866063).

Almost surely, 2^30212112212 is an apocalyptic number.

It is an amenable number.

30212112212 is a deficient number, since it is larger than the sum of its proper divisors (22659084166).

30212112212 is a wasteful number, since it uses less digits than its factorization.

30212112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7553028057 (or 7553028055 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 30212112212 its reverse (21221121203), we get a palindrome (51433233415).

The spelling of 30212112212 in words is "thirty billion, two hundred twelve million, one hundred twelve thousand, two hundred twelve".