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12110310221 = 233469151783
BaseRepresentation
bin10110100011101010…
…01010101101001101
31011020222200111112012
423101311022231031
5144300214411341
65321405551005
7606050636612
oct132165125515
934228614465
1012110310221
115154a55349
12241b875465
1311acc78149
1482c534509
154ad2b00eb
hex2d1d4ab4d

12110310221 has 8 divisors (see below), whose sum is σ = 12640571520. Its totient is φ = 11580359472.

The previous prime is 12110310217. The next prime is 12110310229. The reversal of 12110310221 is 12201301121.

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

It is a cyclic number.

It is not a de Polignac number, because 12110310221 - 22 = 12110310217 is a prime.

It is a super-2 number, since 2×121103102212 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12110310196 and 12110310205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110310229) 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, 3896 + ... + 155678.

It is an arithmetic number, because the mean of its divisors is an integer number (1580071440).

Almost surely, 212110310221 is an apocalyptic number.

It is an amenable number.

12110310221 is a deficient number, since it is larger than the sum of its proper divisors (530261299).

12110310221 is a wasteful number, since it uses less digits than its factorization.

12110310221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155275.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12110310221 its reverse (12201301121), we get a palindrome (24311611342).

The spelling of 12110310221 in words is "twelve billion, one hundred ten million, three hundred ten thousand, two hundred twenty-one".

Divisors: 1 23 3469 79787 151783 3491009 526535227 12110310221