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2200444631221 = 7666792870099
BaseRepresentation
bin100000000001010100101…
…110000111100010110101
321210100201202210010211111
4200001110232013202311
5242023002311144341
64402511553035021
7314656032521014
oct40012456074265
97710652703744
102200444631221
117792266a1001
122b6564555a71
1312c668a20635
1478705a32a7b
153c38a4ce681
hex20054b878b5

2200444631221 has 4 divisors (see below), whose sum is σ = 2200448268000. Its totient is φ = 2200440994444.

The previous prime is 2200444631201. The next prime is 2200444631257. The reversal of 2200444631221 is 1221364440022.

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 2200444631221 - 219 = 2200444106933 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 (2200444631201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 668371 + ... + 2201728.

It is an arithmetic number, because the mean of its divisors is an integer number (550112067000).

Almost surely, 22200444631221 is an apocalyptic number.

It is an amenable number.

2200444631221 is a deficient number, since it is larger than the sum of its proper divisors (3636779).

2200444631221 is an equidigital number, since it uses as much as digits as its factorization.

2200444631221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3636778.

The product of its (nonzero) digits is 18432, while the sum is 31.

The spelling of 2200444631221 in words is "two trillion, two hundred billion, four hundred forty-four million, six hundred thirty-one thousand, two hundred twenty-one".

Divisors: 1 766679 2870099 2200444631221