30020012220 has 96 divisors (see below), whose sum is σ = 93934100736. Its totient is φ = 7100070400.

The previous prime is 30020012219. The next prime is 30020012227. The reversal of 30020012220 is 2221002003.

It is a super-2 number, since 2×30020012220² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 30020012196 and 30020012205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30020012227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 527634 + ... + 581753.

It is an arithmetic number, because the mean of its divisors is an integer number (978480216).

Almost surely, 2^30020012220 is an apocalyptic number.

30020012220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30020012220 is an abundant number, since it is smaller than the sum of its proper divisors (63914088516).

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

30020012220 is a wasteful number, since it uses less digits than its factorization.

30020012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109451 (or 1109449 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 30020012220 its reverse (2221002003), we get a palindrome (32241014223).

The spelling of 30020012220 in words is "thirty billion, twenty million, twelve thousand, two hundred twenty".