211120012120 has 16 divisors (see below), whose sum is σ = 475020027360. Its totient is φ = 84448004832.

The previous prime is 211120012111. The next prime is 211120012127. The reversal of 211120012120 is 21210021112.

It is a self number, because there is not a number n which added to its sum of digits gives 211120012120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211120012127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2639000112 + ... + 2639000191.

It is an arithmetic number, because the mean of its divisors is an integer number (29688751710).

Almost surely, 2^211120012120 is an apocalyptic number.

211120012120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211120012120 is an abundant number, since it is smaller than the sum of its proper divisors (263900015240).

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

211120012120 is a wasteful number, since it uses less digits than its factorization.

211120012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5278000314 (or 5278000310 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 211120012120 its reverse (21210021112), we get a palindrome (232330033232).

The spelling of 211120012120 in words is "two hundred eleven billion, one hundred twenty million, twelve thousand, one hundred twenty".