2101222233200 has 120 divisors (see below), whose sum is σ = 5273364492000. Its totient is φ = 803077242880.

The previous prime is 2101222233197. The next prime is 2101222233221. The reversal of 2101222233200 is 23322221012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8423876 + ... + 8669724.

It is an arithmetic number, because the mean of its divisors is an integer number (43944704100).

Almost surely, 2^{2101222233200} is an apocalyptic number.

2101222233200 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 2101222233200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2636682246000).

2101222233200 is an abundant number, since it is smaller than the sum of its proper divisors (3172142258800).

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

2101222233200 is a wasteful number, since it uses less digits than its factorization.

2101222233200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246819 (or 246808 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 2101222233200 its reverse (23322221012), we get a palindrome (2124544454212).

The spelling of 2101222233200 in words is "two trillion, one hundred one billion, two hundred twenty-two million, two hundred thirty-three thousand, two hundred".