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212111121211332 = 22372360733199339
BaseRepresentation
bin110000001110100111111000…
…000010000101111111000100
31000211000121212201212120112120
4300032213320002011333010
5210300212034012230312
62031042300500445540
762451344214126300
oct6016477002057704
91024017781776476
10212111121211332
116164890421a9a2
121b9586813a98b0
139147cba544c05
143a54339686d00
15197c76c72d28c
hexc0e9f8085fc4

212111121211332 has 36 divisors (see below), whose sum is σ = 575730186146640. Its totient is φ = 60603177488784.

The previous prime is 212111121211277. The next prime is 212111121211333. The reversal of 212111121211332 is 233112121111212.

It is a super-2 number, since 2×2121111212113322 (a number of 29 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (212111121211333) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 180366599082 + ... + 180366600257.

It is an arithmetic number, because the mean of its divisors is an integer number (15992505170740).

Almost surely, 2212111121211332 is an apocalyptic number.

It is an amenable number.

212111121211332 is an abundant number, since it is smaller than the sum of its proper divisors (363619064935308).

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

212111121211332 is a wasteful number, since it uses less digits than its factorization.

212111121211332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360733199360 (or 360733199351 counting only the distinct ones).

The product of its digits is 288, while the sum is 24.

Adding to 212111121211332 its reverse (233112121111212), we get a palindrome (445223242322544).

The spelling of 212111121211332 in words is "two hundred twelve trillion, one hundred eleven billion, one hundred twenty-one million, two hundred eleven thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 49 84 98 147 196 294 588 360733199339 721466398678 1082199598017 1442932797356 2164399196034 2525132395373 4328798392068 5050264790746 7575397186119 10100529581492 15150794372238 17675926767611 30301588744476 35351853535222 53027780302833 70703707070444 106055560605666 212111121211332