Search a number
BaseRepresentation
bin11011110010011010110100…
…000111001000111110001001
3121000201100120212221100210121
4123302122310013020332021
5112004310204412223032
61111531232200143241
734512345546224533
oct3362326407107611
9530640525840717
10122212021211017
1135a38910a04a31
1211859612767b21
13532670c66040a
142227144380853
15e1e036117a97
hex6f26b41c8f89

122212021211017 has 2 divisors, whose sum is σ = 122212021211018. Its totient is φ = 122212021211016.

The previous prime is 122212021210973. The next prime is 122212021211089. The reversal of 122212021211017 is 710112120212221.

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., 85759842156921 + 36452179054096 = 9260661^2 + 6037564^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122212021211017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122212021210982 and 122212021211000.

It is not a weakly prime, because it can be changed into another prime (122212021211617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61106010605508 + 61106010605509.

It is an arithmetic number, because the mean of its divisors is an integer number (61106010605509).

Almost surely, 2122212021211017 is an apocalyptic number.

It is an amenable number.

122212021211017 is a deficient number, since it is larger than the sum of its proper divisors (1).

122212021211017 is an equidigital number, since it uses as much as digits as its factorization.

122212021211017 is an evil number, because the sum of its binary digits is even.

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

Adding to 122212021211017 its reverse (710112120212221), we get a palindrome (832324141423238).

The spelling of 122212021211017 in words is "one hundred twenty-two trillion, two hundred twelve billion, twenty-one million, two hundred eleven thousand, seventeen".