212000101122222 has 48 divisors (see below), whose sum is σ = 525049613019360. Its totient is φ = 60560267270976.

The previous prime is 212000101122179. The next prime is 212000101122239. The reversal of 212000101122222 is 222221101000212.

It is a happy number.

212000101122222 is a `hidden beast` number, since 21 + 200 + 0 + 101 + 122 + 222 = 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 = 212000101122195 and 212000101122204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 154734597 + ... + 156098672.

It is an arithmetic number, because the mean of its divisors is an integer number (10938533604570).

Almost surely, 2^{212000101122222} is an apocalyptic number.

212000101122222 is an abundant number, since it is smaller than the sum of its proper divisors (313049511897138).

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

212000101122222 is a wasteful number, since it uses less digits than its factorization.

212000101122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310838697 (or 310838694 counting only the distinct ones).

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

Adding to 212000101122222 its reverse (222221101000212), we get a palindrome (434221202122434).

The spelling of 212000101122222 in words is "two hundred twelve trillion, one hundred one million, one hundred twenty-two thousand, two hundred twenty-two".