2212122120120 has 96 divisors (see below), whose sum is σ = 7842978439920. Its totient is φ = 536272028160.

The previous prime is 2212122120107. The next prime is 2212122120121. The reversal of 2212122120120 is 210212212122.

It is a happy number.

2212122120120 is a `hidden beast` number, since 221 + 2 + 1 + 221 + 201 + 20 = 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 = 2212122120093 and 2212122120102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212122120121) 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 23 ways as a sum of consecutive naturals, for example, 279304389 + ... + 279312308.

Almost surely, 2^{2212122120120} is an apocalyptic number.

2212122120120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212122120120 is an abundant number, since it is smaller than the sum of its proper divisors (5630856319800).

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

2212122120120 is a wasteful number, since it uses less digits than its factorization.

2212122120120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558616725 (or 558616718 counting only the distinct ones).

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

Adding to 2212122120120 its reverse (210212212122), we get a palindrome (2422334332242).

The spelling of 2212122120120 in words is "two trillion, two hundred twelve billion, one hundred twenty-two million, one hundred twenty thousand, one hundred twenty".