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122202212120201 = 318337383876873
BaseRepresentation
bin11011110010010001101011…
…011100011011011010001001
3121000200102021021101220211202
4123302101223130123122021
5112004130112300321301
61111522530553233545
734511550510305243
oct3362215334333211
9530612237356752
10122202212120201
1135a34737a33904
12118577357028b5
135325808396475
142226893715093
15e1db5edba66b
hex6f246b71b689

122202212120201 has 4 divisors (see below), whose sum is σ = 122202596315412. Its totient is φ = 122201827924992.

The previous prime is 122202212120173. The next prime is 122202212120203. The reversal of 122202212120201 is 102021212202221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 64756059823225 + 57446152296976 = 8047115^2 + 7579324^2 .

It is a cyclic number.

It is not a de Polignac number, because 122202212120201 - 218 = 122202211858057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122202212120203) 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, 191620100 + ... + 192256773.

It is an arithmetic number, because the mean of its divisors is an integer number (30550649078853).

Almost surely, 2122202212120201 is an apocalyptic number.

It is an amenable number.

122202212120201 is a deficient number, since it is larger than the sum of its proper divisors (384195211).

122202212120201 is an equidigital number, since it uses as much as digits as its factorization.

122202212120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384195210.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 122202212120201 its reverse (102021212202221), we get a palindrome (224223424322422).

The spelling of 122202212120201 in words is "one hundred twenty-two trillion, two hundred two billion, two hundred twelve million, one hundred twenty thousand, two hundred one".

Divisors: 1 318337 383876873 122202212120201