12020200120 has 32 divisors (see below), whose sum is σ = 27050332320. Its totient is φ = 4807212160.

The previous prime is 12020200099. The next prime is 12020200141. The reversal of 12020200120 is 2100202021.

It is an interprime number because it is at equal distance from previous prime (12020200099) and next prime (12020200141).

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 = 12020200097 and 12020200106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226530 + ... + 274510.

It is an arithmetic number, because the mean of its divisors is an integer number (845322885).

Almost surely, 2^12020200120 is an apocalyptic number.

12020200120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020200120 is an abundant number, since it is smaller than the sum of its proper divisors (15030132200).

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

12020200120 is a wasteful number, since it uses less digits than its factorization.

12020200120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54255 (or 54251 counting only the distinct ones).

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

Adding to 12020200120 its reverse (2100202021), we get a palindrome (14120402141).

It can be divided in two parts, 120202001 and 20, that added together give a palindrome (120202021).

The spelling of 12020200120 in words is "twelve billion, twenty million, two hundred thousand, one hundred twenty".