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22122004441 = 28378169627
BaseRepresentation
bin10100100110100100…
…101111111111011001
32010002201110021002211
4110212210233333121
5330301213120231
614055051155121
71412126635525
oct244644577731
963081407084
1022122004441
1194223273a9
124354745aa1
1321171cb374
1410dc05cd85
158971cceb1
hex52692ffd9

22122004441 has 4 divisors (see below), whose sum is σ = 22200174352. Its totient is φ = 22043834532.

The previous prime is 22122004433. The next prime is 22122004469. The reversal of 22122004441 is 14440022122.

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 22122004441 - 23 = 22122004433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22122004241) 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, 39084531 + ... + 39085096.

It is an arithmetic number, because the mean of its divisors is an integer number (5550043588).

Almost surely, 222122004441 is an apocalyptic number.

It is an amenable number.

22122004441 is a deficient number, since it is larger than the sum of its proper divisors (78169911).

22122004441 is an equidigital number, since it uses as much as digits as its factorization.

22122004441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78169910.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 22122004441 its reverse (14440022122), we get a palindrome (36562026563).

The spelling of 22122004441 in words is "twenty-two billion, one hundred twenty-two million, four thousand, four hundred forty-one".

Divisors: 1 283 78169627 22122004441