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122212012201 is a prime number
BaseRepresentation
bin111000111010001100…
…1110101000010101001
3102200110011110110210021
41301310121311002221
54000242233342301
6132050551320441
711554345651366
oct1616431650251
9380404413707
10122212012201
1147914549684
121b828680121
13b6a8563426
145cb502d46d
1532a42968a1
hex1c746750a9

122212012201 has 2 divisors, whose sum is σ = 122212012202. Its totient is φ = 122212012200.

The previous prime is 122212012199. The next prime is 122212012231. The reversal of 122212012201 is 102210212221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95332737600 + 26879274601 = 308760^2 + 163949^2 .

It is a cyclic number.

It is not a de Polignac number, because 122212012201 - 21 = 122212012199 is a prime.

Together with 122212012199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (122212012231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61106006100 + 61106006101.

It is an arithmetic number, because the mean of its divisors is an integer number (61106006101).

Almost surely, 2122212012201 is an apocalyptic number.

It is an amenable number.

122212012201 is a deficient number, since it is larger than the sum of its proper divisors (1).

122212012201 is an equidigital number, since it uses as much as digits as its factorization.

122212012201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 122212012201 its reverse (102210212221), we get a palindrome (224422224422).

It can be divided in two parts, 1222120 and 12201, that added together give a palindrome (1234321).

The spelling of 122212012201 in words is "one hundred twenty-two billion, two hundred twelve million, twelve thousand, two hundred one".