30102010121220 has 96 divisors (see below), whose sum is σ = 84383804064000. Its totient is φ = 8017856630784.

The previous prime is 30102010121219. The next prime is 30102010121221. The reversal of 30102010121220 is 2212101020103.

It is an interprime number because it is at equal distance from previous prime (30102010121219) and next prime (30102010121221).

It is a super-2 number, since 2×30102010121220² (a number of 28 digits) contains 22 as substring.

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 30102010121220.

It is not an unprimeable number, because it can be changed into a prime (30102010121221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 250374681 + ... + 250494879.

It is an arithmetic number, because the mean of its divisors is an integer number (878997959000).

Almost surely, 2^{30102010121220} is an apocalyptic number.

30102010121220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30102010121220 is an abundant number, since it is smaller than the sum of its proper divisors (54281793942780).

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

30102010121220 is a wasteful number, since it uses less digits than its factorization.

30102010121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125037 (or 125035 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 30102010121220 its reverse (2212101020103), we get a palindrome (32314111141323).

The spelling of 30102010121220 in words is "thirty trillion, one hundred two billion, ten million, one hundred twenty-one thousand, two hundred twenty".