30102120220 has 24 divisors (see below), whose sum is σ = 63217729008. Its totient is φ = 12040224000.

The previous prime is 30102120163. The next prime is 30102120233. The reversal of 30102120220 is 2202120103.

It is a super-2 number, since 2×30102120220² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30102120220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 677695 + ... + 720745.

It is an arithmetic number, because the mean of its divisors is an integer number (2634072042).

Almost surely, 2^30102120220 is an apocalyptic number.

It is an amenable number.

30102120220 is an abundant number, since it is smaller than the sum of its proper divisors (33115608788).

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

30102120220 is a wasteful number, since it uses less digits than its factorization.

30102120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78021 (or 78019 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 30102120220 its reverse (2202120103), we get a palindrome (32304240323).

The spelling of 30102120220 in words is "thirty billion, one hundred two million, one hundred twenty thousand, two hundred twenty".