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12022030221 = 34211951637
BaseRepresentation
bin10110011001001000…
…11001111110001101
31011000211120102010120
423030210121332031
5144110114431341
65304533455153
7603626366535
oct131444317615
934024512116
1012022030221
11510a139273
1223b61a14b9
1311978a9066
148209144c5
154a5673066
hex2cc919f8d

12022030221 has 8 divisors (see below), whose sum is σ = 16033197024. Its totient is φ = 8012775120.

The previous prime is 12022030217. The next prime is 12022030231. The reversal of 12022030221 is 12203022021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12022030221 - 22 = 12022030217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12022030221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022030211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 463186 + ... + 488451.

It is an arithmetic number, because the mean of its divisors is an integer number (2004149628).

Almost surely, 212022030221 is an apocalyptic number.

It is an amenable number.

12022030221 is a deficient number, since it is larger than the sum of its proper divisors (4011166803).

12022030221 is an equidigital number, since it uses as much as digits as its factorization.

12022030221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955851.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12022030221 its reverse (12203022021), we get a palindrome (24225052242).

The spelling of 12022030221 in words is "twelve billion, twenty-two million, thirty thousand, two hundred twenty-one".

Divisors: 1 3 4211 12633 951637 2854911 4007343407 12022030221