2120020202100 has 288 divisors, whose sum is σ = 6563961129600. Its totient is φ = 527259801600.

The previous prime is 2120020202099. The next prime is 2120020202147. The reversal of 2120020202100 is 12020200212.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 44720410 + ... + 44767790.

It is an arithmetic number, because the mean of its divisors is an integer number (22791531700).

Almost surely, 2^{2120020202100} is an apocalyptic number.

2120020202100 is a gapful number since it is divisible by the number (20) 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 2120020202100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3281980564800).

2120020202100 is an abundant number, since it is smaller than the sum of its proper divisors (4443940927500).

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

2120020202100 is a wasteful number, since it uses less digits than its factorization.

2120020202100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47603 (or 47596 counting only the distinct ones).

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

Adding to 2120020202100 its reverse (12020200212), we get a palindrome (2132040402312).

The spelling of 2120020202100 in words is "two trillion, one hundred twenty billion, twenty million, two hundred two thousand, one hundred".