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122121121323001 = 294211073149069
BaseRepresentation
bin11011110001000110001010…
…000011100101011111111001
3121000101122221220202121101111
4123301012022003211133321
5112001313024024314001
61111421400232120321
734502650142020003
oct3361061203453771
9530348856677344
10122121121323001
1135a03305328739
1211843a845360a1
13531ac84283728
14222299db55373
15e1b9b5c82851
hex6f118a0e57f9

122121121323001 has 4 divisors (see below), whose sum is σ = 126332194472100. Its totient is φ = 117910048173904.

The previous prime is 122121121322971. The next prime is 122121121323101. The reversal of 122121121323001 is 100323121121221.

It is a happy number.

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 20596856717376 + 101524264605625 = 4538376^2 + 10075925^2 .

It is a cyclic number.

It is not a de Polignac number, because 122121121323001 - 217 = 122121121191929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122121121323101) 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, 2105536574506 + ... + 2105536574563.

It is an arithmetic number, because the mean of its divisors is an integer number (31583048618025).

Almost surely, 2122121121323001 is an apocalyptic number.

It is an amenable number.

122121121323001 is a deficient number, since it is larger than the sum of its proper divisors (4211073149099).

122121121323001 is an equidigital number, since it uses as much as digits as its factorization.

122121121323001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4211073149098.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 122121121323001 its reverse (100323121121221), we get a palindrome (222444242444222).

The spelling of 122121121323001 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, one hundred twenty-one million, three hundred twenty-three thousand, one".

Divisors: 1 29 4211073149069 122121121323001