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122221021105 = 543156715091
BaseRepresentation
bin111000111010011110…
…0001100011110110001
3102200110210102011200101
41301310330030132301
54000302040133410
6132051512352401
711554515352411
oct1616474143661
9380423364611
10122221021105
1147919642157
121b82b6a5701
13b6aa398b41
145cb62d6641
1532a4e75d3a
hex1c74f0c7b1

122221021105 has 8 divisors (see below), whose sum is σ = 147005518464. Its totient is φ = 97549954800.

The previous prime is 122221021103. The next prime is 122221021157. The reversal of 122221021105 is 501120122221.

It is a happy number.

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

It is not a de Polignac number, because 122221021105 - 21 = 122221021103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122221021103) 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, 28355391 + ... + 28359700.

It is an arithmetic number, because the mean of its divisors is an integer number (18375689808).

Almost surely, 2122221021105 is an apocalyptic number.

It is an amenable number.

122221021105 is a deficient number, since it is larger than the sum of its proper divisors (24784497359).

122221021105 is an equidigital number, since it uses as much as digits as its factorization.

122221021105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56715527.

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 122221021105 its reverse (501120122221), we get a palindrome (623341143326).

The spelling of 122221021105 in words is "one hundred twenty-two billion, two hundred twenty-one million, twenty-one thousand, one hundred five".

Divisors: 1 5 431 2155 56715091 283575455 24444204221 122221021105