2211200120 has 64 divisors (see below), whose sum is σ = 5154559200. Its totient is φ = 852687360.

The previous prime is 2211200113. The next prime is 2211200141. The reversal of 2211200120 is 210021122.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1183427 + ... + 1185293.

Almost surely, 2^2211200120 is an apocalyptic number.

2211200120 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 2211200120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2577279600).

2211200120 is an abundant number, since it is smaller than the sum of its proper divisors (2943359080).

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

2211200120 is a wasteful number, since it uses less digits than its factorization.

2211200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2928 (or 2924 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2211200120 is about 47023.3997069544. The cubic root of 2211200120 is about 1302.7947999278.

Adding to 2211200120 its reverse (210021122), we get a palindrome (2421221242).

The spelling of 2211200120 in words is "two billion, two hundred eleven million, two hundred thousand, one hundred twenty".