30012203021220 has 96 divisors (see below), whose sum is σ = 106710055200000. Its totient is φ = 6859932118272.

The previous prime is 30012203021179. The next prime is 30012203021233. The reversal of 30012203021220 is 2212030221003.

30012203021220 is a `hidden beast` number, since 300 + 12 + 20 + 302 + 12 + 20 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 30012203021193 and 30012203021202.

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 31 ways as a sum of consecutive naturals, for example, 3969864345 + ... + 3969871904.

It is an arithmetic number, because the mean of its divisors is an integer number (1111563075000).

Almost surely, 2^{30012203021220} is an apocalyptic number.

30012203021220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30012203021220 is an abundant number, since it is smaller than the sum of its proper divisors (76697852178780).

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

30012203021220 is a wasteful number, since it uses less digits than its factorization.

30012203021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7939736274 (or 7939736266 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 30012203021220 its reverse (2212030221003), we get a palindrome (32224233242223).

The spelling of 30012203021220 in words is "thirty trillion, twelve billion, two hundred three million, twenty-one thousand, two hundred twenty".