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22123100401 = 43514490707
BaseRepresentation
bin10100100110101000…
…111011100011110001
32010002210111221110221
4110212220323203301
5330302003203101
614055130453041
71412142151663
oct244650734361
963083457427
1022123100401
119422a05856
124354b94181
1321174c316c
1410dc266533
15897347aa1
hex526a3b8f1

22123100401 has 4 divisors (see below), whose sum is σ = 22637591152. Its totient is φ = 21608609652.

The previous prime is 22123100327. The next prime is 22123100437. The reversal of 22123100401 is 10400132122.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10400132122 = 25200066061.

It is a cyclic number.

It is not a de Polignac number, because 22123100401 - 211 = 22123098353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22123130401) 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, 257245311 + ... + 257245396.

It is an arithmetic number, because the mean of its divisors is an integer number (5659397788).

Almost surely, 222123100401 is an apocalyptic number.

It is an amenable number.

22123100401 is a deficient number, since it is larger than the sum of its proper divisors (514490751).

22123100401 is an equidigital number, since it uses as much as digits as its factorization.

22123100401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514490750.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 22123100401 its reverse (10400132122), we get a palindrome (32523232523).

The spelling of 22123100401 in words is "twenty-two billion, one hundred twenty-three million, one hundred thousand, four hundred one".

Divisors: 1 43 514490707 22123100401