30111221213212 has 6 divisors (see below), whose sum is σ = 52694637123128. Its totient is φ = 15055610606604.

The previous prime is 30111221213197. The next prime is 30111221213233. The reversal of 30111221213212 is 21231212211103.

It is a happy number.

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, 3763902651648 + ... + 3763902651655.

Almost surely, 2^{30111221213212} is an apocalyptic number.

It is an amenable number.

30111221213212 is a deficient number, since it is larger than the sum of its proper divisors (22583415909916).

30111221213212 is a wasteful number, since it uses less digits than its factorization.

30111221213212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7527805303307 (or 7527805303305 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 30111221213212 its reverse (21231212211103), we get a palindrome (51342433424315).

The spelling of 30111221213212 in words is "thirty trillion, one hundred eleven billion, two hundred twenty-one million, two hundred thirteen thousand, two hundred twelve".