2211101122120 has 192 divisors, whose sum is σ = 5663879432640. Its totient is φ = 770368435200.

The previous prime is 2211101122099. The next prime is 2211101122129. The reversal of 2211101122120 is 212211011122.

It is a junction number, because it is equal to n+sod(n) for n = 2211101122094 and 2211101122103.

It is not an unprimeable number, because it can be changed into a prime (2211101122129) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48452434 + ... + 48498046.

It is an arithmetic number, because the mean of its divisors is an integer number (29499372045).

Almost surely, 2^{2211101122120} is an apocalyptic number.

2211101122120 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 2211101122120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2831939716320).

2211101122120 is an abundant number, since it is smaller than the sum of its proper divisors (3452778310520).

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

2211101122120 is a wasteful number, since it uses less digits than its factorization.

2211101122120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45824 (or 45791 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2211101122120 its reverse (212211011122), we get a palindrome (2423312133242).

The spelling of 2211101122120 in words is "two trillion, two hundred eleven billion, one hundred one million, one hundred twenty-two thousand, one hundred twenty".