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11212220202 = 237923654473
BaseRepresentation
bin10100111000100110…
…01110011100101010
31001221101202210121220
422130103032130222
5140430312021302
65052324442510
7544564204431
oct123423163452
931841683556
1011212220202
114834007a97
12220ab49436
131098b9cc31
14785154118
1545950e4bc
hex29c4ce72a

11212220202 has 16 divisors (see below), whose sum is σ = 22708295040. Its totient is φ = 3690097632.

The previous prime is 11212220179. The next prime is 11212220231. The reversal of 11212220202 is 20202221211.

11212220202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 11826763 + ... + 11827710.

It is an arithmetic number, because the mean of its divisors is an integer number (1419268440).

Almost surely, 211212220202 is an apocalyptic number.

11212220202 is an abundant number, since it is smaller than the sum of its proper divisors (11496074838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11212220202 is a wasteful number, since it uses less digits than its factorization.

11212220202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23654557.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 11212220202 its reverse (20202221211), we get a palindrome (31414441413).

The spelling of 11212220202 in words is "eleven billion, two hundred twelve million, two hundred twenty thousand, two hundred two".

Divisors: 1 2 3 6 79 158 237 474 23654473 47308946 70963419 141926838 1868703367 3737406734 5606110101 11212220202