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12131003221222 = 247635112733261
BaseRepresentation
bin1011000010000111100000…
…1000110100010011100110
31120221201020110202021012211
42300201320020310103212
53042223243311034342
641444523403434034
72361302366015044
oct260417010642346
946851213667184
1012131003221222
113957803077986
12143b0a052591a
1369cc4438b832
142dd2023d3394
1516084dd9ec17
hexb08782344e6

12131003221222 has 8 divisors (see below), whose sum is σ = 18196544460672. Its totient is φ = 6065488401000.

The previous prime is 12131003221217. The next prime is 12131003221291. The reversal of 12131003221222 is 22212230013121.

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

It is a super-2 number, since 2×121310032212222 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12131003221193 and 12131003221202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5413929 + ... + 7319332.

It is an arithmetic number, because the mean of its divisors is an integer number (2274568057584).

Almost surely, 212131003221222 is an apocalyptic number.

12131003221222 is a deficient number, since it is larger than the sum of its proper divisors (6065541239450).

12131003221222 is a wasteful number, since it uses less digits than its factorization.

12131003221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13209614.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12131003221222 its reverse (22212230013121), we get a palindrome (34343233234343).

The spelling of 12131003221222 in words is "twelve trillion, one hundred thirty-one billion, three million, two hundred twenty-one thousand, two hundred twenty-two".

Divisors: 1 2 476351 952702 12733261 25466522 6065501610611 12131003221222