12000020220120 has 256 divisors, whose sum is σ = 38226492518400. Its totient is φ = 3003184824320.

The previous prime is 12000020220109. The next prime is 12000020220131. The reversal of 12000020220120 is 2102202000021.

It is an interprime number because it is at equal distance from previous prime (12000020220109) and next prime (12000020220131).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 12000020220096 and 12000020220105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1535114452 + ... + 1535122268.

It is an arithmetic number, because the mean of its divisors is an integer number (149322236400).

Almost surely, 2^{12000020220120} is an apocalyptic number.

12000020220120 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 12000020220120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19113246259200).

12000020220120 is an abundant number, since it is smaller than the sum of its proper divisors (26226472298280).

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

12000020220120 is a wasteful number, since it uses less digits than its factorization.

12000020220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9898 (or 9894 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 12000020220120 its reverse (2102202000021), we get a palindrome (14102222220141).

The spelling of 12000020220120 in words is "twelve trillion, twenty million, two hundred twenty thousand, one hundred twenty".