12100122222120 has 48 divisors (see below), whose sum is σ = 39325397223060. Its totient is φ = 3226699259136.

The previous prime is 12100122222113. The next prime is 12100122222137. The reversal of 12100122222120 is 2122222100121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11847790811844 + 252331410276 = 3442062^2 + 502326^2 .

It is a super-3 number, since 3×12100122222120³ (a number of 40 digits) contains 333 as substring.

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 = 12100122222093 and 12100122222102.

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, 16805724949 + ... + 16805725668.

Almost surely, 2^{12100122222120} is an apocalyptic number.

12100122222120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12100122222120 is an abundant number, since it is smaller than the sum of its proper divisors (27225275000940).

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

12100122222120 is a wasteful number, since it uses less digits than its factorization.

12100122222120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33611450634 (or 33611450627 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12100122222120 its reverse (2122222100121), we get a palindrome (14222344322241).

The spelling of 12100122222120 in words is "twelve trillion, one hundred billion, one hundred twenty-two million, two hundred twenty-two thousand, one hundred twenty".