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120221200000331 = 251971477123161
BaseRepresentation
bin11011010101011100101101…
…111010111010010101001011
3120202200000221010121022200022
4123111130231322322111023
5111224201004200002311
61103404505024331055
734215460260154253
oct3325345572722513
9522600833538608
10120221200000331
1135340585270441
1211597810773a8b
135210a6c918131
142198a46966963
15dd7368d815db
hex6d572deba54b

120221200000331 has 4 divisors (see below), whose sum is σ = 120221677375464. Its totient is φ = 120220722625200.

The previous prime is 120221200000313. The next prime is 120221200000351. The reversal of 120221200000331 is 133000002122021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120221200000331 - 226 = 120221132891467 is a prime.

It is a super-2 number, since 2×1202212000003312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120221200000351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238309610 + ... + 238813551.

It is an arithmetic number, because the mean of its divisors is an integer number (30055419343866).

Almost surely, 2120221200000331 is an apocalyptic number.

120221200000331 is a deficient number, since it is larger than the sum of its proper divisors (477375133).

120221200000331 is an equidigital number, since it uses as much as digits as its factorization.

120221200000331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477375132.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 120221200000331 its reverse (133000002122021), we get a palindrome (253221202122352).

The spelling of 120221200000331 in words is "one hundred twenty trillion, two hundred twenty-one billion, two hundred million, three hundred thirty-one", and thus it is an aban number.

Divisors: 1 251971 477123161 120221200000331