211022320212 has 36 divisors (see below), whose sum is σ = 581910035616. Its totient is φ = 63946157520.

The previous prime is 211022320177. The next prime is 211022320279. The reversal of 211022320212 is 212023220112.

211022320212 is a `hidden beast` number, since 2 + 110 + 22 + 320 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 266441928 + ... + 266442719.

It is an arithmetic number, because the mean of its divisors is an integer number (16164167656).

Almost surely, 2^211022320212 is an apocalyptic number.

211022320212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

211022320212 is an abundant number, since it is smaller than the sum of its proper divisors (370887715404).

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

211022320212 is a wasteful number, since it uses less digits than its factorization.

211022320212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532884668 (or 532884663 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 211022320212 its reverse (212023220112), we get a palindrome (423045540324).

It can be divided in two parts, 2110 and 22320212, that added together give a palindrome (22322322).

The spelling of 211022320212 in words is "two hundred eleven billion, twenty-two million, three hundred twenty thousand, two hundred twelve".