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22110314221 = 35961588619
BaseRepresentation
bin10100100101111000…
…001001111011101101
32010001220110100010201
4110211320021323231
5330240220023341
614053552433501
71411625366332
oct244570117355
963056410121
1022110314221
119416772366
124350848891
132114967388
1410da698989
1589616e331
hex525e09eed

22110314221 has 4 divisors (see below), whose sum is σ = 22171903200. Its totient is φ = 22048725244.

The previous prime is 22110314201. The next prime is 22110314227. The reversal of 22110314221 is 12241301122.

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: 12241301122 = 26120650561.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22110314221 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 (22110314227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30793951 + ... + 30794668.

It is an arithmetic number, because the mean of its divisors is an integer number (5542975800).

Almost surely, 222110314221 is an apocalyptic number.

It is an amenable number.

22110314221 is a deficient number, since it is larger than the sum of its proper divisors (61588979).

22110314221 is an equidigital number, since it uses as much as digits as its factorization.

22110314221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61588978.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 22110314221 its reverse (12241301122), we get a palindrome (34351615343).

The spelling of 22110314221 in words is "twenty-two billion, one hundred ten million, three hundred fourteen thousand, two hundred twenty-one".

Divisors: 1 359 61588619 22110314221