30520201262220 has 144 divisors (see below), whose sum is σ = 95878761320160. Its totient is φ = 7849174330368.

The previous prime is 30520201262219. The next prime is 30520201262267. The reversal of 30520201262220 is 2226210202503.

30520201262220 is a `hidden beast` number, since 3 + 0 + 5 + 2 + 0 + 2 + 0 + 12 + 622 + 20 = 666.

It is a super-3 number, since 3×30520201262220³ (a number of 41 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1298512 + ... + 7920008.

It is an arithmetic number, because the mean of its divisors is an integer number (665824731390).

Almost surely, 2^{30520201262220} is an apocalyptic number.

30520201262220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30520201262220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47939380660080).

30520201262220 is an abundant number, since it is smaller than the sum of its proper divisors (65358560057940).

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

30520201262220 is a wasteful number, since it uses less digits than its factorization.

30520201262220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6622424 (or 6622419 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 30520201262220 its reverse (2226210202503), we get a palindrome (32746411464723).

The spelling of 30520201262220 in words is "thirty trillion, five hundred twenty billion, two hundred one million, two hundred sixty-two thousand, two hundred twenty".