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11212212202 = 283101668747
BaseRepresentation
bin10100111000100110…
…01100011111101010
31001221101202101122121
422130103030133222
5140430311242302
65052324341454
7544564142212
oct123423143752
931841671577
1011212212202
114834001a84
12220ab4488a
131098b993b9
14785151242
1545950be37
hex29c4cc7ea

11212212202 has 16 divisors (see below), whose sum is σ = 17189498592. Its totient is φ = 5483717200.

The previous prime is 11212212133. The next prime is 11212212239. The reversal of 11212212202 is 20221221211.

It is a happy number.

11212212202 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317608 + ... + 351139.

It is an arithmetic number, because the mean of its divisors is an integer number (1074343662).

Almost surely, 211212212202 is an apocalyptic number.

11212212202 is a deficient number, since it is larger than the sum of its proper divisors (5977286390).

11212212202 is a wasteful number, since it uses less digits than its factorization.

11212212202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668933.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11212212202 its reverse (20221221211), we get a palindrome (31433433413).

Subtracting 11212212202 from its reverse (20221221211), we obtain a palindrome (9009009009).

The spelling of 11212212202 in words is "eleven billion, two hundred twelve million, two hundred twelve thousand, two hundred two".

Divisors: 1 2 83 101 166 202 8383 16766 668747 1337494 55506001 67543447 111012002 135086894 5606106101 11212212202