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122120121021247 is a prime number
BaseRepresentation
bin11011110001000101001110…
…011011101111001100111111
3121000101120101012112000100101
4123301011032123233030333
5112001304001440134442
61111421113100141531
734502613304421236
oct3361051633571477
9530346335460311
10122120121021247
1135a02941719178
12118438455378a7
13531ab54c6c0bb
142222906d69b1d
15e1b958041cb7
hex6f114e6ef33f

122120121021247 has 2 divisors, whose sum is σ = 122120121021248. Its totient is φ = 122120121021246.

The previous prime is 122120121021181. The next prime is 122120121021257. The reversal of 122120121021247 is 742120121021221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122120121021247 - 215 = 122120120988479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122120121021257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61060060510623 + 61060060510624.

It is an arithmetic number, because the mean of its divisors is an integer number (61060060510624).

Almost surely, 2122120121021247 is an apocalyptic number.

122120121021247 is a deficient number, since it is larger than the sum of its proper divisors (1).

122120121021247 is an equidigital number, since it uses as much as digits as its factorization.

122120121021247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 28.

Adding to 122120121021247 its reverse (742120121021221), we get a palindrome (864240242042468).

The spelling of 122120121021247 in words is "one hundred twenty-two trillion, one hundred twenty billion, one hundred twenty-one million, twenty-one thousand, two hundred forty-seven".