30220121300 has 72 divisors (see below), whose sum is σ = 69123596640. Its totient is φ = 11436163200.

The previous prime is 30220121279. The next prime is 30220121311. The reversal of 30220121300 is 312102203.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1427795 + ... + 1448805.

Almost surely, 2^30220121300 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 30220121300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34561798320).

30220121300 is an abundant number, since it is smaller than the sum of its proper divisors (38903475340).

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

30220121300 is a wasteful number, since it uses less digits than its factorization.

30220121300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21801 (or 21794 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 30220121300 its reverse (312102203), we get a palindrome (30532223503).

The spelling of 30220121300 in words is "thirty billion, two hundred twenty million, one hundred twenty-one thousand, three hundred".