2111241252120 has 512 divisors, whose sum is σ = 8778359439360. Its totient is φ = 391889664000.

The previous prime is 2111241252073. The next prime is 2111241252121. The reversal of 2111241252120 is 212521421112.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111241252121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3440235 + ... + 4007205.

It is an arithmetic number, because the mean of its divisors is an integer number (17145233280).

Almost surely, 2^{2111241252120} is an apocalyptic number.

2111241252120 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 2111241252120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4389179719680).

2111241252120 is an abundant number, since it is smaller than the sum of its proper divisors (6667118187240).

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

2111241252120 is a wasteful number, since it uses less digits than its factorization.

2111241252120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567047 (or 567043 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

Adding to 2111241252120 its reverse (212521421112), we get a palindrome (2323762673232).

The spelling of 2111241252120 in words is "two trillion, one hundred eleven billion, two hundred forty-one million, two hundred fifty-two thousand, one hundred twenty".