30123212210212 has 48 divisors (see below), whose sum is σ = 59334401165760. Its totient is φ = 13262305190400.

The previous prime is 30123212210197. The next prime is 30123212210237. The reversal of 30123212210212 is 21201221232103.

It is a super-2 number, since 2×30123212210212² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 59814033 + ... + 60315544.

It is an arithmetic number, because the mean of its divisors is an integer number (1236133357620).

Almost surely, 2^{30123212210212} is an apocalyptic number.

It is an amenable number.

30123212210212 is a deficient number, since it is larger than the sum of its proper divisors (29211188955548).

30123212210212 is a wasteful number, since it uses less digits than its factorization.

30123212210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120129772 (or 120129770 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 30123212210212 its reverse (21201221232103), we get a palindrome (51324433442315).

The spelling of 30123212210212 in words is "thirty trillion, one hundred twenty-three billion, two hundred twelve million, two hundred ten thousand, two hundred twelve".