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122221034002121 is a prime number
BaseRepresentation
bin11011110010100011001101…
…010100001101011011001001
3121000202012212000002120220112
4123302203031110031123021
5112004432134201031441
61111535322355404105
734513115105541455
oct3362431524153311
9530665760076815
10122221034002121
1135a4171644231a
121185b308bb3635
13532751796b7c2
14222775b365665
15e1e3b24be4eb
hex6f28cd50d6c9

122221034002121 has 2 divisors, whose sum is σ = 122221034002122. Its totient is φ = 122221034002120.

The previous prime is 122221034002087. The next prime is 122221034002127. The reversal of 122221034002121 is 121200430122221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122197880119225 + 23153882896 = 11054315^2 + 152164^2 .

It is a cyclic number.

It is not a de Polignac number, because 122221034002121 - 210 = 122221034001097 is a prime.

It is not a weakly prime, because it can be changed into another prime (122221034002127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61110517001060 + 61110517001061.

It is an arithmetic number, because the mean of its divisors is an integer number (61110517001061).

Almost surely, 2122221034002121 is an apocalyptic number.

It is an amenable number.

122221034002121 is a deficient number, since it is larger than the sum of its proper divisors (1).

122221034002121 is an equidigital number, since it uses as much as digits as its factorization.

122221034002121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 122221034002121 its reverse (121200430122221), we get a palindrome (243421464124342).

The spelling of 122221034002121 in words is "one hundred twenty-two trillion, two hundred twenty-one billion, thirty-four million, two thousand, one hundred twenty-one".