30100331220 has 48 divisors (see below), whose sum is σ = 86336566848. Its totient is φ = 7830979840.

The previous prime is 30100331207. The next prime is 30100331227. The reversal of 30100331220 is 2213300103.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 30100331220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30100331227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6115494 + ... + 6120413.

It is an arithmetic number, because the mean of its divisors is an integer number (1798678476).

Almost surely, 2^30100331220 is an apocalyptic number.

30100331220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30100331220 is an abundant number, since it is smaller than the sum of its proper divisors (56236235628).

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

30100331220 is a wasteful number, since it uses less digits than its factorization.

30100331220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12235960 (or 12235958 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 30100331220 its reverse (2213300103), we get a palindrome (32313631323).

The spelling of 30100331220 in words is "thirty billion, one hundred million, three hundred thirty-one thousand, two hundred twenty".