212932738218222 has 160 divisors (see below), whose sum is σ = 522846134949600. Its totient is φ = 64235112065280.

The previous prime is 212932738218197. The next prime is 212932738218281. The reversal of 212932738218222 is 222812837239212.

212932738218222 is a `hidden beast` number, since 2 + 1 + 2 + 9 + 3 + 27 + 382 + 18 + 222 = 666.

It is a super-3 number, since 3×212932738218222³ (a number of 44 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 380956468 + ... + 381515000.

It is an arithmetic number, because the mean of its divisors is an integer number (3267788343435).

Almost surely, 2^{212932738218222} is an apocalyptic number.

212932738218222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 212932738218222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261423067474800).

212932738218222 is an abundant number, since it is smaller than the sum of its proper divisors (309913396731378).

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

212932738218222 is a wasteful number, since it uses less digits than its factorization.

212932738218222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559520 (or 559511 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 54.

The spelling of 212932738218222 in words is "two hundred twelve trillion, nine hundred thirty-two billion, seven hundred thirty-eight million, two hundred eighteen thousand, two hundred twenty-two".