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22421311105 = 55202186201
BaseRepresentation
bin10100111000011010…
…100000111010000001
32010212120122121122211
4110320122200322001
5331404323423410
614144502302121
71422422666644
oct247032407201
963776577584
1022421311105
119566277986
124418a27941
1321642156bb
141129ad1a5b
158b360168a
hex5386a0e81

22421311105 has 8 divisors (see below), whose sum is σ = 26906402664. Its totient is φ = 17936496000.

The previous prime is 22421311103. The next prime is 22421311123. The reversal of 22421311105 is 50111312422.

It can be written as a sum of positive squares in 4 ways, for example, as 90193009 + 22331118096 = 9497^2 + 149436^2 .

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

It is not a de Polignac number, because 22421311105 - 21 = 22421311103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22421311103) 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, 217005 + ... + 303205.

It is an arithmetic number, because the mean of its divisors is an integer number (3363300333).

Almost surely, 222421311105 is an apocalyptic number.

It is an amenable number.

22421311105 is a deficient number, since it is larger than the sum of its proper divisors (4485091559).

22421311105 is an equidigital number, since it uses as much as digits as its factorization.

22421311105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138227.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 22421311105 its reverse (50111312422), we get a palindrome (72532623527).

The spelling of 22421311105 in words is "twenty-two billion, four hundred twenty-one million, three hundred eleven thousand, one hundred five".

Divisors: 1 5 52021 86201 260105 431005 4484262221 22421311105