212123201120 has 96 divisors (see below), whose sum is σ = 538093958976. Its totient is φ = 78733312000.

The previous prime is 212123201119. The next prime is 212123201123. The reversal of 212123201120 is 21102321212.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212123201123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 356081 + ... + 742320.

It is an arithmetic number, because the mean of its divisors is an integer number (5605145406).

Almost surely, 2^212123201120 is an apocalyptic number.

212123201120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212123201120 is an abundant number, since it is smaller than the sum of its proper divisors (325970757856).

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

212123201120 is a wasteful number, since it uses less digits than its factorization.

212123201120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098504 (or 1098496 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 212123201120 its reverse (21102321212), we get a palindrome (233225522332).

The spelling of 212123201120 in words is "two hundred twelve billion, one hundred twenty-three million, two hundred one thousand, one hundred twenty".