12012100213020 has 48 divisors (see below), whose sum is σ = 33634511372448. Its totient is φ = 3203166649600.

The previous prime is 12012100213013. The next prime is 12012100213021. The reversal of 12012100213020 is 2031200121021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012100213021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1395802 + ... + 5096318.

It is an arithmetic number, because the mean of its divisors is an integer number (700718986926).

Almost surely, 2^{12012100213020} is an apocalyptic number.

12012100213020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012100213020 is an abundant number, since it is smaller than the sum of its proper divisors (21622411159428).

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

12012100213020 is a wasteful number, since it uses less digits than its factorization.

12012100213020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3754630 (or 3754628 counting only the distinct ones).

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

Adding to 12012100213020 its reverse (2031200121021), we get a palindrome (14043300334041).

The spelling of 12012100213020 in words is "twelve trillion, twelve billion, one hundred million, two hundred thirteen thousand, twenty".