2211203231120 has 80 divisors (see below), whose sum is σ = 5727427014960. Its totient is φ = 788291008512.

The previous prime is 2211203231101. The next prime is 2211203231123. The reversal of 2211203231120 is 211323021122.

2211203231120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 747713007616 + 1463490223504 = 864704^2 + 1209748^2 .

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a junction number, because it is equal to n+sod(n) for n = 2211203231092 and 2211203231101.

It is not an unprimeable number, because it can be changed into a prime (2211203231123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36627719 + ... + 36688038.

It is an arithmetic number, because the mean of its divisors is an integer number (71592837687).

Almost surely, 2^{2211203231120} is an apocalyptic number.

2211203231120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211203231120 is an abundant number, since it is smaller than the sum of its proper divisors (3516223783840).

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

2211203231120 is a wasteful number, since it uses less digits than its factorization.

2211203231120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73315812 (or 73315806 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2211203231120 its reverse (211323021122), we get a palindrome (2422526252242).

The spelling of 2211203231120 in words is "two trillion, two hundred eleven billion, two hundred three million, two hundred thirty-one thousand, one hundred twenty".