12021101021120 has 56 divisors (see below), whose sum is σ = 28625542234704. Its totient is φ = 4808390782976.

The previous prime is 12021101021081. The next prime is 12021101021161. The reversal of 12021101021120 is 2112010112021.

It is a junction number, because it is equal to n+sod(n) for n = 12021101021095 and 12021101021104.

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 7 ways as a sum of consecutive naturals, for example, 60830312 + ... + 61027608.

Almost surely, 2^{12021101021120} is an apocalyptic number.

12021101021120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12021101021120 is an abundant number, since it is smaller than the sum of its proper divisors (16604441213584).

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

12021101021120 is a wasteful number, since it uses less digits than its factorization.

12021101021120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387717 (or 387707 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12021101021120 its reverse (2112010112021), we get a palindrome (14133111133141).

Subtracting from 12021101021120 its reverse (2112010112021), we obtain a palindrome (9909090909099).

The spelling of 12021101021120 in words is "twelve trillion, twenty-one billion, one hundred one million, twenty-one thousand, one hundred twenty".