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1202212011101 = 2019975951633
BaseRepresentation
bin10001011111101001011…
…010110111110001011101
311020221010012222220202112
4101133221122313301131
5124144112233323401
62320142155403405
7152566635326003
oct21375132676135
94227105886675
101202212011101
1142394537a842
12174bb6453565
13894a296340a
144228a210a73
1521413ecb3bb
hex117e96b7c5d

1202212011101 has 4 divisors (see below), whose sum is σ = 1202218164732. Its totient is φ = 1202205857472.

The previous prime is 1202212011083. The next prime is 1202212011107. The reversal of 1202212011101 is 1011102122021.

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 567084302500 + 635127708601 = 753050^2 + 796949^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202212011101 - 218 = 1202211748957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202212011107) 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, 2773820 + ... + 3177813.

It is an arithmetic number, because the mean of its divisors is an integer number (300554541183).

Almost surely, 21202212011101 is an apocalyptic number.

It is an amenable number.

1202212011101 is a deficient number, since it is larger than the sum of its proper divisors (6153631).

1202212011101 is an equidigital number, since it uses as much as digits as its factorization.

1202212011101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6153630.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1202212011101 its reverse (1011102122021), we get a palindrome (2213314133122).

The spelling of 1202212011101 in words is "one trillion, two hundred two billion, two hundred twelve million, eleven thousand, one hundred one".

Divisors: 1 201997 5951633 1202212011101