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12202221111 = 353449170921
BaseRepresentation
bin10110101110100111…
…10001111000110111
31011111101122001120020
423113103301320313
5144442232033421
65334451540223
7611245111443
oct132723617067
934441561506
1012202221111
1151a1921363
1224465ba673
1311c6018aa2
1483a81b823
154b63b7dc6
hex2d74f1e37

12202221111 has 16 divisors (see below), whose sum is σ = 16613618400. Its totient is φ = 7963504640.

The previous prime is 12202221091. The next prime is 12202221127. The reversal of 12202221111 is 11112220221.

It is a cyclic number.

It is not a de Polignac number, because 12202221111 - 29 = 12202220599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202221131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14070 + ... + 156851.

It is an arithmetic number, because the mean of its divisors is an integer number (1038351150).

Almost surely, 212202221111 is an apocalyptic number.

12202221111 is a deficient number, since it is larger than the sum of its proper divisors (4411397289).

12202221111 is a wasteful number, since it uses less digits than its factorization.

12202221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171426.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12202221111 its reverse (11112220221), we get a palindrome (23314441332).

The spelling of 12202221111 in words is "twelve billion, two hundred two million, two hundred twenty-one thousand, one hundred eleven".

Divisors: 1 3 53 159 449 1347 23797 71391 170921 512763 9058813 27176439 76743529 230230587 4067407037 12202221111