2200121220000 has 720 divisors, whose sum is σ = 7981584700320. Its totient is φ = 530069760000.

The previous prime is 2200121219999. The next prime is 2200121220019. The reversal of 2200121220000 is 221210022.

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

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1299539154 + ... + 1299540846.

It is an arithmetic number, because the mean of its divisors is an integer number (11085534306).

Almost surely, 2^{2200121220000} is an apocalyptic number.

2200121220000 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 2200121220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3990792350160).

2200121220000 is an abundant number, since it is smaller than the sum of its proper divisors (5781463480320).

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

2200121220000 is a wasteful number, since it uses less digits than its factorization.

2200121220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1927 (or 1893 counting only the distinct ones).

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

Adding to 2200121220000 its reverse (221210022), we get a palindrome (2200342430022).

The spelling of 2200121220000 in words is "two trillion, two hundred billion, one hundred twenty-one million, two hundred twenty thousand".