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12211353245 = 571326838139
BaseRepresentation
bin10110101111101101…
…00111011010011101
31011112000211000111102
423113312213122131
5200002101300440
65335415402445
7611415534650
oct132766473235
934460730442
1012211353245
1151a6a99483
122449683425
1311c7b95610
1483bb17897
154b70bdb15
hex2d7da769d

12211353245 has 16 divisors (see below), whose sum is σ = 18035230080. Its totient is φ = 7729383744.

The previous prime is 12211353233. The next prime is 12211353277. The reversal of 12211353245 is 54235311221.

It is a cyclic number.

It is not a de Polignac number, because 12211353245 - 24 = 12211353229 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13418615 + ... + 13419524.

It is an arithmetic number, because the mean of its divisors is an integer number (1127201880).

Almost surely, 212211353245 is an apocalyptic number.

It is an amenable number.

12211353245 is a deficient number, since it is larger than the sum of its proper divisors (5823876835).

12211353245 is a wasteful number, since it uses less digits than its factorization.

12211353245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26838164.

The product of its digits is 7200, while the sum is 29.

Adding to 12211353245 its reverse (54235311221), we get a palindrome (66446664466).

The spelling of 12211353245 in words is "twelve billion, two hundred eleven million, three hundred fifty-three thousand, two hundred forty-five".

Divisors: 1 5 7 13 35 65 91 455 26838139 134190695 187866973 348895807 939334865 1744479035 2442270649 12211353245