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12011212202 = 2112392284369
BaseRepresentation
bin10110010111110110…
…01000110110101010
31011000002012210121012
423023323020312222
5144044332242302
65303505543522
7603435422243
oct131373106652
934002183535
1012011212202
11510401a560
1223b2644ba2
13119558c072
1481d2d9cca
154a4737a52
hex2cbec8daa

12011212202 has 16 divisors (see below), whose sum is σ = 19736956800. Its totient is φ = 5436795840.

The previous prime is 12011212201. The next prime is 12011212217. The reversal of 12011212202 is 20221211021.

It is a super-2 number, since 2×120112122022 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12011212201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1136927 + ... + 1147442.

It is an arithmetic number, because the mean of its divisors is an integer number (1233559800).

Almost surely, 212011212202 is an apocalyptic number.

12011212202 is a deficient number, since it is larger than the sum of its proper divisors (7725744598).

12011212202 is a wasteful number, since it uses less digits than its factorization.

12011212202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2284621.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12011212202 its reverse (20221211021), we get a palindrome (32232423223).

The spelling of 12011212202 in words is "twelve billion, eleven million, two hundred twelve thousand, two hundred two".

Divisors: 1 2 11 22 239 478 2629 5258 2284369 4568738 25128059 50256118 545964191 1091928382 6005606101 12011212202