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12102022211 = 43281442377
BaseRepresentation
bin10110100010101011…
…00011010001000011
31011020102002102111212
423101111203101003
5144241104202321
65320512200335
7605620330406
oct132125432103
934212072455
1012102022211
115150304454
122418b390ab
1311ab3358b6
1482b3b7d3d
154ac6c455b
hex2d1563443

12102022211 has 4 divisors (see below), whose sum is σ = 12383464632. Its totient is φ = 11820579792.

The previous prime is 12102022201. The next prime is 12102022223. The reversal of 12102022211 is 11222020121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11222020121 = 13863232317.

It is a cyclic number.

It is not a de Polignac number, because 12102022211 - 26 = 12102022147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12102022201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140721146 + ... + 140721231.

It is an arithmetic number, because the mean of its divisors is an integer number (3095866158).

Almost surely, 212102022211 is an apocalyptic number.

12102022211 is a deficient number, since it is larger than the sum of its proper divisors (281442421).

12102022211 is an equidigital number, since it uses as much as digits as its factorization.

12102022211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281442420.

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

Adding to 12102022211 its reverse (11222020121), we get a palindrome (23324042332).

The spelling of 12102022211 in words is "twelve billion, one hundred two million, twenty-two thousand, two hundred eleven".

Divisors: 1 43 281442377 12102022211