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110201220122221 = 195800064216959
BaseRepresentation
bin11001000011101000111000…
…100101000100011001101101
3112110012010121111201002122101
4121003220320211010121231
5103421014044322402341
61030213424105215101
732132526652400314
oct3103507045043155
9473163544632571
10110201220122221
1132128090901268
1210439899791491
134964c1330ba37
141d2daa60ad27b
15cb18bed49831
hex643a3894466d

110201220122221 has 4 divisors (see below), whose sum is σ = 116001284339200. Its totient is φ = 104401155905244.

The previous prime is 110201220122219. The next prime is 110201220122239. The reversal of 110201220122221 is 122221022102011.

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 110201220122221 - 21 = 110201220122219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 5800064216959 = 110201220122221 / (1 + 1 + 0 + 2 + 0 + 1 + 2 + 2 + 0 + 1 + 2 + 2 + 2 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110201220122621) 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, 2900032108461 + ... + 2900032108498.

It is an arithmetic number, because the mean of its divisors is an integer number (29000321084800).

Almost surely, 2110201220122221 is an apocalyptic number.

It is an amenable number.

110201220122221 is a deficient number, since it is larger than the sum of its proper divisors (5800064216979).

110201220122221 is an equidigital number, since it uses as much as digits as its factorization.

110201220122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5800064216978.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 110201220122221 its reverse (122221022102011), we get a palindrome (232422242224232).

The spelling of 110201220122221 in words is "one hundred ten trillion, two hundred one billion, two hundred twenty million, one hundred twenty-two thousand, two hundred twenty-one".

Divisors: 1 19 5800064216959 110201220122221