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12221060612053 = 44327587044271
BaseRepresentation
bin1011000111010110111111…
…1110011111111111010101
31121021022200201121201202111
42301311233332133333111
53100212213004041203
641554135554111021
72400641163140566
oct261655776377725
947238621551674
1012221060612053
113991a17127607
12145463457b471
136a8597056287
14303706b9016d
15162d702b626d
hexb1d6ff9ffd5

12221060612053 has 4 divisors (see below), whose sum is σ = 12248647656768. Its totient is φ = 12193473567340.

The previous prime is 12221060612051. The next prime is 12221060612063. The reversal of 12221060612053 is 35021606012221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12221060612053 - 21 = 12221060612051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221060612051) 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, 13793521693 + ... + 13793522578.

It is an arithmetic number, because the mean of its divisors is an integer number (3062161914192).

Almost surely, 212221060612053 is an apocalyptic number.

It is an amenable number.

12221060612053 is a deficient number, since it is larger than the sum of its proper divisors (27587044715).

12221060612053 is an equidigital number, since it uses as much as digits as its factorization.

12221060612053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27587044714.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 12221060612053 its reverse (35021606012221), we get a palindrome (47242666624274).

The spelling of 12221060612053 in words is "twelve trillion, two hundred twenty-one billion, sixty million, six hundred twelve thousand, fifty-three".

Divisors: 1 443 27587044271 12221060612053