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122114442421 = 345493534529
BaseRepresentation
bin111000110111010010…
…1101000010010110101
3102200012100212102012201
41301232211220102311
54000042244124141
6132033144144501
711552052430366
oct1615645502265
9380170772181
10122114442421
1147874467aa4
121b7bba68131
13b691290b2a
145ca60b1b6d
15329a922031
hex1c6e9684b5

122114442421 has 4 divisors (see below), whose sum is σ = 122118011500. Its totient is φ = 122110873344.

The previous prime is 122114442419. The next prime is 122114442427. The reversal of 122114442421 is 124244411221.

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 53687207025 + 68427235396 = 231705^2 + 261586^2 .

It is a cyclic number.

It is not a de Polignac number, because 122114442421 - 21 = 122114442419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122114442421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122114442427) 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, 1732716 + ... + 1801813.

It is an arithmetic number, because the mean of its divisors is an integer number (30529502875).

Almost surely, 2122114442421 is an apocalyptic number.

It is an amenable number.

122114442421 is a deficient number, since it is larger than the sum of its proper divisors (3569079).

122114442421 is an equidigital number, since it uses as much as digits as its factorization.

122114442421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3569078.

The product of its digits is 4096, while the sum is 28.

Adding to 122114442421 its reverse (124244411221), we get a palindrome (246358853642).

The spelling of 122114442421 in words is "one hundred twenty-two billion, one hundred fourteen million, four hundred forty-two thousand, four hundred twenty-one".

Divisors: 1 34549 3534529 122114442421