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1212131330110 = 25121213133011
BaseRepresentation
bin10001101000111000101…
…010000100100000111110
311021212201111221112101001
4101220320222010200332
5124324421110030420
62324502341040514
7153400513210261
oct21507052044076
94255644845331
101212131330110
11428075598a48
12176b043b613a
138a3c3a1254c
144294b770cd8
15217e4c4db0a
hex11a38a8483e

1212131330110 has 8 divisors (see below), whose sum is σ = 2181836394216. Its totient is φ = 484852532040.

The previous prime is 1212131330101. The next prime is 1212131330129. The reversal of 1212131330110 is 110331312121.

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

It is a super-2 number, since 2×12121313301102 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60606566496 + ... + 60606566515.

It is an arithmetic number, because the mean of its divisors is an integer number (272729549277).

Almost surely, 21212131330110 is an apocalyptic number.

1212131330110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212131330110 is a deficient number, since it is larger than the sum of its proper divisors (969705064106).

1212131330110 is a wasteful number, since it uses less digits than its factorization.

1212131330110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121213133018.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1212131330110 its reverse (110331312121), we get a palindrome (1322462642231).

The spelling of 1212131330110 in words is "one trillion, two hundred twelve billion, one hundred thirty-one million, three hundred thirty thousand, one hundred ten".

Divisors: 1 2 5 10 121213133011 242426266022 606065665055 1212131330110