30221023121300 has 144 divisors (see below), whose sum is σ = 72553850131392. Its totient is φ = 10834075929600.

The previous prime is 30221023121279. The next prime is 30221023121357. The reversal of 30221023121300 is 312132012203.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 181957094 + ... + 182123106.

It is an arithmetic number, because the mean of its divisors is an integer number (503846181468).

Almost surely, 2^{30221023121300} 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 30221023121300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36276925065696).

30221023121300 is an abundant number, since it is smaller than the sum of its proper divisors (42332827010092).

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

30221023121300 is a wasteful number, since it uses less digits than its factorization.

30221023121300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168378 (or 168371 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 30221023121300 its reverse (312132012203), we get a palindrome (30533155133503).

The spelling of 30221023121300 in words is "thirty trillion, two hundred twenty-one billion, twenty-three million, one hundred twenty-one thousand, three hundred".