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12201211201999 = 312143183661903
BaseRepresentation
bin1011000110001101000011…
…0111000000100111001111
31121012102110101110020002011
42301203100313000213033
53044401040031430444
641541054204242051
72366336250011461
oct261432067004717
947172411406064
1012201211201999
113984560702a96
121450814b40327
136a6752925c21
143027828a8131
151625ac894734
hexb18d0dc09cf

12201211201999 has 8 divisors (see below), whose sum is σ = 12600675909632. Its totient is φ = 11802113822520.

The previous prime is 12201211201969. The next prime is 12201211202023. The reversal of 12201211201999 is 99910211210221.

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 12201211201999 - 225 = 12201177647567 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 (12201211201969) 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, 91764519 + ... + 91897384.

It is an arithmetic number, because the mean of its divisors is an integer number (1575084488704).

Almost surely, 212201211201999 is an apocalyptic number.

12201211201999 is a deficient number, since it is larger than the sum of its proper divisors (399464707633).

12201211201999 is a wasteful number, since it uses less digits than its factorization.

12201211201999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183664077.

The product of its (nonzero) digits is 11664, while the sum is 40.

The spelling of 12201211201999 in words is "twelve trillion, two hundred one billion, two hundred eleven million, two hundred one thousand, nine hundred ninety-nine".

Divisors: 1 31 2143 66433 183661903 5693518993 393587458129 12201211201999