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1201201201211 = 11199081548521
BaseRepresentation
bin10001011110101101001…
…010111100000000111011
311020211111202222110021012
4101132231022330000323
5124140030001414321
62315454010304135
7152532612513254
oct21365512740073
94224452873235
101201201201211
11423476843370
12174973a2804b
138937140cb5b
14421d1c8bb2b
15213a53b205b
hex117ad2bc03b

1201201201211 has 8 divisors (see below), whose sum is σ = 1310410281648. Its totient is φ = 1091993616000.

The previous prime is 1201201201183. The next prime is 1201201201271. The reversal of 1201201201211 is 1121021021021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1201201201211 - 222 = 1201197006907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201201201271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1915631 + ... + 2464151.

It is an arithmetic number, because the mean of its divisors is an integer number (163801285206).

Almost surely, 21201201201211 is an apocalyptic number.

1201201201211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1201201201211 is a deficient number, since it is larger than the sum of its proper divisors (109209080437).

1201201201211 is a wasteful number, since it uses less digits than its factorization.

1201201201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747613.

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

Adding to 1201201201211 its reverse (1121021021021), we get a palindrome (2322222222232).

The spelling of 1201201201211 in words is "one trillion, two hundred one billion, two hundred one million, two hundred one thousand, two hundred eleven".

Divisors: 1 11 199081 548521 2189891 6033731 109200109201 1201201201211