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BaseRepresentation
bin10110010110110000…
…00101001101000011
31010222102220220022011
423023120011031003
5144040004202321
65302540553351
7603264335254
oct131330051503
933872826264
1012002022211
1150a9912a23
1223ab552857
1311936c20ba
1481bdc6b2b
154a3a1eae1
hex2cb605343

12002022211 has 4 divisors (see below), whose sum is σ = 12009772000. Its totient is φ = 11994272424.

The previous prime is 12002022143. The next prime is 12002022233. The reversal of 12002022211 is 11222020021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11222020021 = 16903663907.

It is a cyclic number.

It is not a de Polignac number, because 12002022211 - 29 = 12002021699 is a prime.

It is a super-3 number, since 3×120020222113 (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12002022191 and 12002022200.

It is not an unprimeable number, because it can be changed into a prime (12002022511) 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, 3872571 + ... + 3875668.

It is an arithmetic number, because the mean of its divisors is an integer number (3002443000).

Almost surely, 212002022211 is an apocalyptic number.

12002022211 is a deficient number, since it is larger than the sum of its proper divisors (7749789).

12002022211 is an equidigital number, since it uses as much as digits as its factorization.

12002022211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7749788.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12002022211 its reverse (11222020021), we get a palindrome (23224042232).

The spelling of 12002022211 in words is "twelve billion, two million, twenty-two thousand, two hundred eleven".

Divisors: 1 1549 7748239 12002022211