11212122012120 has 48 divisors (see below), whose sum is σ = 36439396540560. Its totient is φ = 2989899203136.

The previous prime is 11212122012109. The next prime is 11212122012149. The reversal of 11212122012120 is 2121022121211.

11212122012120 is a `hidden beast` number, since 112 + 121 + 220 + 1 + 212 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11212122012093 and 11212122012102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15572391324 + ... + 15572392043.

It is an arithmetic number, because the mean of its divisors is an integer number (759154094595).

Almost surely, 2^{11212122012120} is an apocalyptic number.

11212122012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11212122012120 is an abundant number, since it is smaller than the sum of its proper divisors (25227274528440).

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

11212122012120 is a wasteful number, since it uses less digits than its factorization.

11212122012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31144783384 (or 31144783377 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11212122012120 its reverse (2121022121211), we get a palindrome (13333144133331).

The spelling of 11212122012120 in words is "eleven trillion, two hundred twelve billion, one hundred twenty-two million, twelve thousand, one hundred twenty".