213111333120222 has 256 divisors, whose sum is σ = 513423760435200. Its totient is φ = 65383587763200.

The previous prime is 213111333120199. The next prime is 213111333120269. The reversal of 213111333120222 is 222021333111312.

213111333120222 is a `hidden beast` number, since 2 + 1 + 311 + 1 + 3 + 3 + 3 + 120 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 638527833 + ... + 638861499.

It is an arithmetic number, because the mean of its divisors is an integer number (2005561564200).

Almost surely, 2^{213111333120222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213111333120222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256711880217600).

213111333120222 is an abundant number, since it is smaller than the sum of its proper divisors (300312427314978).

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

213111333120222 is a wasteful number, since it uses less digits than its factorization.

213111333120222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333968 (or 333962 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 213111333120222 its reverse (222021333111312), we get a palindrome (435132666231534).

It can be divided in two parts, 213111 and 333120222, that added together give a palindrome (333333333).

The spelling of 213111333120222 in words is "two hundred thirteen trillion, one hundred eleven billion, three hundred thirty-three million, one hundred twenty thousand, two hundred twenty-two".