30210444012 has 96 divisors (see below), whose sum is σ = 83641872384. Its totient is φ = 8304710400.

The previous prime is 30210443993. The next prime is 30210444013. The reversal of 30210444012 is 21044401203.

It is a super-2 number, since 2×30210444012² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 30210444012.

It is not an unprimeable number, because it can be changed into a prime (30210444013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 416962 + ... + 484022.

It is an arithmetic number, because the mean of its divisors is an integer number (871269504).

Almost surely, 2^30210444012 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 30210444012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41820936192).

30210444012 is an abundant number, since it is smaller than the sum of its proper divisors (53431428372).

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

30210444012 is a wasteful number, since it uses less digits than its factorization.

30210444012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67279 (or 67277 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 30210444012 its reverse (21044401203), we get a palindrome (51254845215).

The spelling of 30210444012 in words is "thirty billion, two hundred ten million, four hundred forty-four thousand, twelve".