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BaseRepresentation
bin11011100011111111000001…
…011010110100000100100111
3120220012112021200101221020111
4123203333001122310010213
5111342032234344323402
61105451425352513451
734350602153613322
oct3343770132640447
9526175250357214
10121220107026727
1135696182240065
12117193286ab887
135284012623217
1421d1127b7d7b9
15e0332e69d9d7
hex6e3fc16b4127

121220107026727 has 2 divisors, whose sum is σ = 121220107026728. Its totient is φ = 121220107026726.

The previous prime is 121220107026611. The next prime is 121220107026731. The reversal of 121220107026727 is 727620701022121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-121220107026727 is a prime.

It is a super-2 number, since 2×1212201070267272 (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121220107026727.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121220107026737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60610053513363 + 60610053513364.

It is an arithmetic number, because the mean of its divisors is an integer number (60610053513364).

Almost surely, 2121220107026727 is an apocalyptic number.

121220107026727 is a deficient number, since it is larger than the sum of its proper divisors (1).

121220107026727 is an equidigital number, since it uses as much as digits as its factorization.

121220107026727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65856, while the sum is 40.

Adding to 121220107026727 its reverse (727620701022121), we get a palindrome (848840808048848).

The spelling of 121220107026727 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred seven million, twenty-six thousand, seven hundred twenty-seven".