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12110010021001 = 29021417284381
BaseRepresentation
bin1011000000111001010011…
…0110000111010010001001
31120212201001102100012101201
42300032110312013102021
53041402300031133001
641431132314344201
72356630223530504
oct260162466072211
946781042305351
1012110010021001
11394990aa49932
121437001a2b061
1369ac79cb7a79
142dc1b025013b
15160020d47501
hexb0394d87489

12110010021001 has 4 divisors (see below), whose sum is σ = 12110427334404. Its totient is φ = 12109592707600.

The previous prime is 12110010020971. The next prime is 12110010021049. The reversal of 12110010021001 is 10012001001121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9732403302400 + 2377606718601 = 3119680^2 + 1541949^2 .

It is a cyclic number.

It is not a de Polignac number, because 12110010021001 - 239 = 11560254207113 is a prime.

It is a super-2 number, since 2×121100100210012 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12110010021091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208613170 + ... + 208671211.

It is an arithmetic number, because the mean of its divisors is an integer number (3027606833601).

Almost surely, 212110010021001 is an apocalyptic number.

It is an amenable number.

12110010021001 is a deficient number, since it is larger than the sum of its proper divisors (417313403).

12110010021001 is an equidigital number, since it uses as much as digits as its factorization.

12110010021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417313402.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 12110010021001 its reverse (10012001001121), we get a palindrome (22122011022122).

The spelling of 12110010021001 in words is "twelve trillion, one hundred ten billion, ten million, twenty-one thousand, one".

Divisors: 1 29021 417284381 12110010021001