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122213320211321 = 412980812688081
BaseRepresentation
bin11011110010011100000001…
…100010011011101101111001
3121000201110221102020102012222
4123302130001202123231321
5112004320334433230241
61111532005122213425
734512423001442453
oct3362340142335571
9530643842212188
10122213320211321
1135a3941818a0a9
12118599157b4275
135326888808351
142227228ac12d3
15e1e0b01aba4b
hex6f270189bb79

122213320211321 has 4 divisors (see below), whose sum is σ = 125194132899444. Its totient is φ = 119232507523200.

The previous prime is 122213320211267. The next prime is 122213320211327. The reversal of 122213320211321 is 123112023312221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2951304100096 + 119262016111225 = 1717936^2 + 10920715^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122213320211321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122213320211327) 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, 1490406344000 + ... + 1490406344081.

It is an arithmetic number, because the mean of its divisors is an integer number (31298533224861).

Almost surely, 2122213320211321 is an apocalyptic number.

It is an amenable number.

122213320211321 is a deficient number, since it is larger than the sum of its proper divisors (2980812688123).

122213320211321 is an equidigital number, since it uses as much as digits as its factorization.

122213320211321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2980812688122.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 122213320211321 its reverse (123112023312221), we get a palindrome (245325343523542).

The spelling of 122213320211321 in words is "one hundred twenty-two trillion, two hundred thirteen billion, three hundred twenty million, two hundred eleven thousand, three hundred twenty-one".

Divisors: 1 41 2980812688081 122213320211321