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12221010202001 = 41614886449501
BaseRepresentation
bin1011000111010110110011…
…1110001100110110010001
31121021022120012202122011112
42301311230332030312101
53100212112102431001
641554130553423105
72400640011514526
oct261655476146621
947238505678145
1012221010202001
1139919a0726807
12145461b70aa95
136a8589786343
143037001cb14d
15162d6ab59cbb
hexb1d6cf8cd91

12221010202001 has 8 divisors (see below), whose sum is σ = 12724314503208. Its totient is φ = 11727478800000.

The previous prime is 12221010201989. The next prime is 12221010202007. The reversal of 12221010202001 is 10020201012221.

It can be written as a sum of positive squares in 4 ways, for example, as 1148221545601 + 11072788656400 = 1071551^2 + 3327580^2 .

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 12221010202001 - 230 = 12219936460177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12221010202007) 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, 2443222250 + ... + 2443227251.

It is an arithmetic number, because the mean of its divisors is an integer number (1590539312901).

Almost surely, 212221010202001 is an apocalyptic number.

It is an amenable number.

12221010202001 is a deficient number, since it is larger than the sum of its proper divisors (503304301207).

12221010202001 is an equidigital number, since it uses as much as digits as its factorization.

12221010202001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4886449603.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12221010202001 its reverse (10020201012221), we get a palindrome (22241211214222).

The spelling of 12221010202001 in words is "twelve trillion, two hundred twenty-one billion, ten million, two hundred two thousand, one".

Divisors: 1 41 61 2501 4886449501 200344429541 298073419561 12221010202001