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122211210121207 is a prime number
BaseRepresentation
bin11011110010011010000011…
…110001000100111111110111
3121000201021111100201201202021
4123302122003301010333313
5112004302024242334312
61111531015503454011
734512316500122314
oct3362320361047767
9530637440651667
10122211210121207
1135a3853508a179
1211859426bb7307
1353266105c690c
1422270a8769d0b
15e1ded9ceec07
hex6f2683c44ff7

122211210121207 has 2 divisors, whose sum is σ = 122211210121208. Its totient is φ = 122211210121206.

The previous prime is 122211210121201. The next prime is 122211210121243. The reversal of 122211210121207 is 702121012112221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122211210121207 - 231 = 122209062637559 is a prime.

It is a super-2 number, since 2×1222112101212072 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122211210121201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61105605060603 + 61105605060604.

It is an arithmetic number, because the mean of its divisors is an integer number (61105605060604).

Almost surely, 2122211210121207 is an apocalyptic number.

122211210121207 is a deficient number, since it is larger than the sum of its proper divisors (1).

122211210121207 is an equidigital number, since it uses as much as digits as its factorization.

122211210121207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 25.

Adding to 122211210121207 its reverse (702121012112221), we get a palindrome (824332222233428).

The spelling of 122211210121207 in words is "one hundred twenty-two trillion, two hundred eleven billion, two hundred ten million, one hundred twenty-one thousand, two hundred seven".