12020102020 has 48 divisors (see below), whose sum is σ = 25953774336. Its totient is φ = 4673376000.

The previous prime is 12020101999. The next prime is 12020102041. The reversal of 12020102020 is 2020102021.

It is an interprime number because it is at equal distance from previous prime (12020101999) and next prime (12020102041).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 12020101988 and 12020102006.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195175 + ... + 249265.

It is an arithmetic number, because the mean of its divisors is an integer number (540703632).

Almost surely, 2^12020102020 is an apocalyptic number.

12020102020 is a gapful number since it is divisible by the number (10) 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 12020102020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12976887168).

12020102020 is an abundant number, since it is smaller than the sum of its proper divisors (13933672316).

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

12020102020 is a wasteful number, since it uses less digits than its factorization.

12020102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54412 (or 54410 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 12020102020 its reverse (2020102021), we get a palindrome (14040204041).

Subtracting from 12020102020 its reverse (2020102021), we obtain a palindrome (9999999999).

The spelling of 12020102020 in words is "twelve billion, twenty million, one hundred two thousand, twenty".