212011021011222 has 24 divisors (see below), whose sum is σ = 459385142376576. Its totient is φ = 70666043385456.

The previous prime is 212011021011221. The next prime is 212011021011239. The reversal of 212011021011222 is 222110120110212.

212011021011222 is a `hidden beast` number, since 2 + 120 + 110 + 210 + 1 + 1 + 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 = 212011021011195 and 212011021011204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212011021011221) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 357775033 + ... + 358367124.

It is an arithmetic number, because the mean of its divisors is an integer number (19141047599024).

Almost surely, 2^{212011021011222} is an apocalyptic number.

212011021011222 is an abundant number, since it is smaller than the sum of its proper divisors (247374121365354).

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

212011021011222 is a wasteful number, since it uses less digits than its factorization.

212011021011222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716158612 (or 716158609 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 212011021011222 its reverse (222110120110212), we get a palindrome (434121141121434).

The spelling of 212011021011222 in words is "two hundred twelve trillion, eleven billion, twenty-one million, eleven thousand, two hundred twenty-two".