212122122112120 has 64 divisors (see below), whose sum is σ = 520986184316640. Its totient is φ = 77087495846400.

The previous prime is 212122122112091. The next prime is 212122122112139. The reversal of 212122122112120 is 21211221221212.

212122122112120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 212122122112091 and 212122122112100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148730991 + ... + 150150430.

Almost surely, 2^{212122122112120} is an apocalyptic number.

212122122112120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212122122112120 is an abundant number, since it is smaller than the sum of its proper divisors (308864062204520).

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

212122122112120 is a wasteful number, since it uses less digits than its factorization.

212122122112120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298883056 (or 298883052 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 212122122112120 its reverse (21211221221212), we get a palindrome (233333343333332).

The spelling of 212122122112120 in words is "two hundred twelve trillion, one hundred twenty-two billion, one hundred twenty-two million, one hundred twelve thousand, one hundred twenty".