30120020320220 has 24 divisors (see below), whose sum is σ = 66581097550800. Its totient is φ = 11413902436992.

The previous prime is 30120020320219. The next prime is 30120020320253. The reversal of 30120020320220 is 2202302002103.

It is a super-2 number, since 2×30120020320220² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39631605305 + ... + 39631606064.

It is an arithmetic number, because the mean of its divisors is an integer number (2774212397950).

Almost surely, 2^{30120020320220} is an apocalyptic number.

It is an amenable number.

30120020320220 is an abundant number, since it is smaller than the sum of its proper divisors (36461077230580).

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

30120020320220 is a wasteful number, since it uses less digits than its factorization.

30120020320220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79263211397 (or 79263211395 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 30120020320220 its reverse (2202302002103), we get a palindrome (32322322322323).

The spelling of 30120020320220 in words is "thirty trillion, one hundred twenty billion, twenty million, three hundred twenty thousand, two hundred twenty".