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2212203402121 = 43251204966497
BaseRepresentation
bin100000001100010001100…
…110010001001110001001
321211111002020222121001211
4200030101212101032021
5242221043032331441
64412134444213121
7315553314442636
oct40142146211611
97744066877054
102212203402121
1178321016a689
122b88a653a1a1
131307c0bc3a3b
14790dd5b918d
153c82799ea81
hex20311991389

2212203402121 has 8 divisors (see below), whose sum is σ = 2272668529824. Its totient is φ = 2152148208000.

The previous prime is 2212203402107. The next prime is 2212203402127. The reversal of 2212203402121 is 1212043022122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2212203402121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2212203402092 and 2212203402101.

It is not an unprimeable number, because it can be changed into a prime (2212203402127) 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, 102472456 + ... + 102494041.

It is an arithmetic number, because the mean of its divisors is an integer number (284083566228).

Almost surely, 22212203402121 is an apocalyptic number.

It is an amenable number.

2212203402121 is a deficient number, since it is larger than the sum of its proper divisors (60465127703).

2212203402121 is a wasteful number, since it uses less digits than its factorization.

2212203402121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204966791.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 2212203402121 its reverse (1212043022122), we get a palindrome (3424246424243).

The spelling of 2212203402121 in words is "two trillion, two hundred twelve billion, two hundred three million, four hundred two thousand, one hundred twenty-one".

Divisors: 1 43 251 10793 204966497 8813559371 51446590747 2212203402121