30001212203112 has 192 divisors, whose sum is σ = 85955373504000. Its totient is φ = 9437812457472.

The previous prime is 30001212203099. The next prime is 30001212203113. The reversal of 30001212203112 is 21130221210003.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (30001212203113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 75267813 + ... + 75665355.

It is an arithmetic number, because the mean of its divisors is an integer number (447684237000).

Almost surely, 2^{30001212203112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30001212203112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42977686752000).

30001212203112 is an abundant number, since it is smaller than the sum of its proper divisors (55954161300888).

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

30001212203112 is a wasteful number, since it uses less digits than its factorization.

30001212203112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398400 (or 398393 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 30001212203112 its reverse (21130221210003), we get a palindrome (51131433413115).

The spelling of 30001212203112 in words is "thirty trillion, one billion, two hundred twelve million, two hundred three thousand, one hundred twelve".