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1231211222114 = 26131004250589
BaseRepresentation
bin10001111010101001111…
…010000101010001100010
311100200222020010110201212
4101322221322011101202
5130133010033101424
62341335521230122
7154644363466466
oct21725172052142
94320866113655
101231211222114
11435176701235
1217a74a192342
138c1448a3183
144383b7844a6
152205ed1a10e
hex11ea9e85462

1231211222114 has 8 divisors (see below), whose sum is σ = 1849829586780. Its totient is φ = 614601359856.

The previous prime is 1231211222083. The next prime is 1231211222161. The reversal of 1231211222114 is 4112221121321.

It can be written as a sum of positive squares in 2 ways, for example, as 1231063478089 + 147744025 = 1109533^2 + 12155^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1231211222114.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 502124069 + ... + 502126520.

Almost surely, 21231211222114 is an apocalyptic number.

1231211222114 is a deficient number, since it is larger than the sum of its proper divisors (618618364666).

1231211222114 is a wasteful number, since it uses less digits than its factorization.

1231211222114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004251204.

The product of its digits is 384, while the sum is 23.

Adding to 1231211222114 its reverse (4112221121321), we get a palindrome (5343432343435).

The spelling of 1231211222114 in words is "one trillion, two hundred thirty-one billion, two hundred eleven million, two hundred twenty-two thousand, one hundred fourteen".

Divisors: 1 2 613 1226 1004250589 2008501178 615605611057 1231211222114