30221212111212 has 12 divisors (see below), whose sum is σ = 70516161592856. Its totient is φ = 10073737370400.

The previous prime is 30221212111157. The next prime is 30221212111249. The reversal of 30221212111212 is 21211121212203.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×30221212111212² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1259217171289 + ... + 1259217171312.

Almost surely, 2^{30221212111212} is an apocalyptic number.

It is an amenable number.

30221212111212 is an abundant number, since it is smaller than the sum of its proper divisors (40294949481644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30221212111212 is a wasteful number, since it uses less digits than its factorization.

30221212111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2518434342608 (or 2518434342606 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 30221212111212 its reverse (21211121212203), we get a palindrome (51432333323415).

The spelling of 30221212111212 in words is "thirty trillion, two hundred twenty-one billion, two hundred twelve million, one hundred eleven thousand, two hundred twelve".