212111001100120 has 32 divisors (see below), whose sum is σ = 477253528959600. Its totient is φ = 84843729065088.

The previous prime is 212111001100109. The next prime is 212111001100127. The reversal of 212111001100120 is 21001100111212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 212111001100120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212111001100127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15846810 + ... + 25987369.

Almost surely, 2^{212111001100120} is an apocalyptic number.

212111001100120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212111001100120 is an abundant number, since it is smaller than the sum of its proper divisors (265142527859480).

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

212111001100120 is a wasteful number, since it uses less digits than its factorization.

212111001100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41960947 (or 41960943 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 212111001100120 its reverse (21001100111212), we get a palindrome (233112101211332).

The spelling of 212111001100120 in words is "two hundred twelve trillion, one hundred eleven billion, one million, one hundred thousand, one hundred twenty".