212110212112220 has 24 divisors (see below), whose sum is σ = 446520519891600. Its totient is φ = 84636642091392.

The previous prime is 212110212112207. The next prime is 212110212112261. The reversal of 212110212112220 is 22211212011212.

212110212112220 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 (20).

It is a junction number, because it is equal to n+sod(n) for n = 212110212112192 and 212110212112201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12965163710 + ... + 12965180069.

It is an arithmetic number, because the mean of its divisors is an integer number (18605021662150).

Almost surely, 2^{212110212112220} is an apocalyptic number.

212110212112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212110212112220 is an abundant number, since it is smaller than the sum of its proper divisors (234410307779380).

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

212110212112220 is a wasteful number, since it uses less digits than its factorization.

212110212112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25930344197 (or 25930344195 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 212110212112220 its reverse (22211212011212), we get a palindrome (234321424123432).

The spelling of 212110212112220 in words is "two hundred twelve trillion, one hundred ten billion, two hundred twelve million, one hundred twelve thousand, two hundred twenty".