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122212102221330 = 235112175623352201
BaseRepresentation
bin11011110010011010111000…
…111100001010111000010010
3121000201100210112101010001120
4123302122320330022320102
5112004310341132040310
61111531244212343110
734512350551626312
oct3362327074127022
9530640715333046
10122212102221330
1135a38952706200
1211859635914a96
135326723385604
14222715102b442
15e1e03d2bab70
hex6f26b8f0ae12

122212102221330 has 192 divisors, whose sum is σ = 341423784785664. Its totient is φ = 27879363072000.

The previous prime is 122212102221323. The next prime is 122212102221397. The reversal of 122212102221330 is 33122201212221.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 122212102221330.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 346819230 + ... + 347171430.

It is an arithmetic number, because the mean of its divisors is an integer number (1778248879092).

Almost surely, 2122212102221330 is an apocalyptic number.

122212102221330 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 122212102221330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170711892392832).

122212102221330 is an abundant number, since it is smaller than the sum of its proper divisors (219211682564334).

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

122212102221330 is a wasteful number, since it uses less digits than its factorization.

122212102221330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357873 (or 357862 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 122212102221330 its reverse (33122201212221), we get a palindrome (155334303433551).

The spelling of 122212102221330 in words is "one hundred twenty-two trillion, two hundred twelve billion, one hundred two million, two hundred twenty-one thousand, three hundred thirty".