12021202002100 has 72 divisors (see below), whose sum is σ = 26330943149280. Its totient is φ = 4763350350720.

The previous prime is 12021202002023. The next prime is 12021202002109. The reversal of 12021202002100 is 120020212021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021202002109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52063107 + ... + 52293493.

It is an arithmetic number, because the mean of its divisors is an integer number (365707543740).

Almost surely, 2^{12021202002100} is an apocalyptic number.

12021202002100 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 12021202002100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13165471574640).

12021202002100 is an abundant number, since it is smaller than the sum of its proper divisors (14309741147180).

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

12021202002100 is a wasteful number, since it uses less digits than its factorization.

12021202002100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235297 (or 235290 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12021202002100 its reverse (120020212021), we get a palindrome (12141222214121).

The spelling of 12021202002100 in words is "twelve trillion, twenty-one billion, two hundred two million, two thousand, one hundred".