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1202212201331 = 2909413273359
BaseRepresentation
bin10001011111101001011…
…011100110001101110011
311020221010020100120201002
4101133221123212031303
5124144112310420311
62320142203432215
7152566640050421
oct21375133461563
94227106316632
101202212201331
1142394549a759
12174bb652566b
13894a29cbb8b
144228a260111
152141401793b
hex117e96e6373

1202212201331 has 4 divisors (see below), whose sum is σ = 1202625477600. Its totient is φ = 1201798925064.

The previous prime is 1202212201327. The next prime is 1202212201363. The reversal of 1202212201331 is 1331022122021.

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 1202212201331 - 22 = 1202212201327 is a prime.

It is a super-2 number, since 2×12022122013312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202212201301) 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, 206633771 + ... + 206639588.

It is an arithmetic number, because the mean of its divisors is an integer number (300656369400).

Almost surely, 21202212201331 is an apocalyptic number.

1202212201331 is a deficient number, since it is larger than the sum of its proper divisors (413276269).

1202212201331 is an equidigital number, since it uses as much as digits as its factorization.

1202212201331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413276268.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1202212201331 its reverse (1331022122021), we get a palindrome (2533234323352).

The spelling of 1202212201331 in words is "one trillion, two hundred two billion, two hundred twelve million, two hundred one thousand, three hundred thirty-one".

Divisors: 1 2909 413273359 1202212201331