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12010020211 = 76768337493
BaseRepresentation
bin10110010111101101…
…00101110101110011
31010222222222020111101
423023312211311303
5144044031121321
65303424225231
7603422326120
oct131366456563
933888866441
1012010020211
115103385a42
1223b216b217
131195262647
1481d0a9747
154a459e791
hex2cbda5d73

12010020211 has 16 divisors (see below), whose sum is σ = 13951367424. Its totient is φ = 10125539424.

The previous prime is 12010020181. The next prime is 12010020223. The reversal of 12010020211 is 11202001021.

It is not a de Polignac number, because 12010020211 - 213 = 12010012019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12010024211) 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, 301581 + ... + 339073.

It is an arithmetic number, because the mean of its divisors is an integer number (871960464).

Almost surely, 212010020211 is an apocalyptic number.

12010020211 is a deficient number, since it is larger than the sum of its proper divisors (1941347213).

12010020211 is an equidigital number, since it uses as much as digits as its factorization.

12010020211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38250.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12010020211 its reverse (11202001021), we get a palindrome (23212021232).

The spelling of 12010020211 in words is "twelve billion, ten million, twenty thousand, two hundred eleven".

Divisors: 1 7 67 469 683 4781 37493 45761 262451 320327 2512031 17584217 25607719 179254033 1715717173 12010020211