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12212310330 = 2335114789983
BaseRepresentation
bin10110101111110100…
…10001000100111010
31011112002121122101000
423113322101010322
5200002322412310
65335452105430
7611426632203
oct132772210472
934462548330
1012212310330
1151a7592560
122449a65276
1311c813c13c
1483bcc65aa
154b720c4c0
hex2d7e9113a

12212310330 has 256 divisors, whose sum is σ = 36727603200. Its totient is φ = 2862097920.

The previous prime is 12212310311. The next prime is 12212310337. The reversal of 12212310330 is 3301321221.

12212310330 is a `hidden beast` number, since 1 + 2 + 21 + 2 + 310 + 330 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (12212310337) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 12423019 + ... + 12424001.

It is an arithmetic number, because the mean of its divisors is an integer number (143467200).

Almost surely, 212212310330 is an apocalyptic number.

12212310330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12212310330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18363801600).

12212310330 is an abundant number, since it is smaller than the sum of its proper divisors (24515292870).

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

12212310330 is a wasteful number, since it uses less digits than its factorization.

12212310330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146 (or 1140 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12212310330 its reverse (3301321221), we get a palindrome (15513631551).

The spelling of 12212310330 in words is "twelve billion, two hundred twelve million, three hundred ten thousand, three hundred thirty".