30204421220 has 192 divisors, whose sum is σ = 73600773120. Its totient is φ = 10338951168.

The previous prime is 30204421211. The next prime is 30204421223. The reversal of 30204421220 is 2212440203.

It is a super-2 number, since 2×30204421220² (a number of 22 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 30204421192 and 30204421201.

It is not an unprimeable number, because it can be changed into a prime (30204421223) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16090922 + ... + 16092798.

It is an arithmetic number, because the mean of its divisors is an integer number (383337360).

Almost surely, 2^30204421220 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 30204421220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36800386560).

30204421220 is an abundant number, since it is smaller than the sum of its proper divisors (43396351900).

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

30204421220 is a wasteful number, since it uses less digits than its factorization.

30204421220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022 (or 2020 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 30204421220 its reverse (2212440203), we get a palindrome (32416861423).

The spelling of 30204421220 in words is "thirty billion, two hundred four million, four hundred twenty-one thousand, two hundred twenty".