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12222001210201 = 51577236966113
BaseRepresentation
bin1011000111011010100000…
…0010100110001101011001
31121021102010021112001211221
42301312220002212031121
53100221124302211301
641554413154252041
72401003404115336
oct261665002461531
947242107461757
1012222001210201
11399235a068952
121454857587021
136a86b6b95823
14303795a7798d
15162dc7b61da1
hexb1da80a6359

12222001210201 has 4 divisors (see below), whose sum is σ = 12222238227892. Its totient is φ = 12221764192512.

The previous prime is 12222001210129. The next prime is 12222001210247. The reversal of 12222001210201 is 10201210022221.

It is a happy number.

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 4750115634576 + 7471885575625 = 2179476^2 + 2733475^2 .

It is a cyclic number.

It is not a de Polignac number, because 12222001210201 - 223 = 12221992821593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12222001210261) 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, 118431480 + ... + 118534633.

It is an arithmetic number, because the mean of its divisors is an integer number (3055559556973).

Almost surely, 212222001210201 is an apocalyptic number.

It is an amenable number.

12222001210201 is a deficient number, since it is larger than the sum of its proper divisors (237017691).

12222001210201 is an equidigital number, since it uses as much as digits as its factorization.

12222001210201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237017690.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12222001210201 its reverse (10201210022221), we get a palindrome (22423211232422).

The spelling of 12222001210201 in words is "twelve trillion, two hundred twenty-two billion, one million, two hundred ten thousand, two hundred one".

Divisors: 1 51577 236966113 12222001210201