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BaseRepresentation
bin11011100011111111000001…
…101010110100000011110111
3120220012112021222022000200022
4123203333001222310003313
5111342032241433032413
61105451430022435355
734350602234352425
oct3343770152640367
9526175258260608
10121220111220983
1135696184645295
1211719329b92b5b
135284013461328
1421d1128552115
15e0332ec2b608
hex6e3fc1ab40f7

121220111220983 has 2 divisors, whose sum is σ = 121220111220984. Its totient is φ = 121220111220982.

The previous prime is 121220111220959. The next prime is 121220111221007. The reversal of 121220111220983 is 389022111022121.

It is a balanced prime because it is at equal distance from previous prime (121220111220959) and next prime (121220111221007).

It is an emirp because it is prime and its reverse (389022111022121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121220111220983 - 220 = 121220110172407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121220111420983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60610055610491 + 60610055610492.

It is an arithmetic number, because the mean of its divisors is an integer number (60610055610492).

Almost surely, 2121220111220983 is an apocalyptic number.

121220111220983 is a deficient number, since it is larger than the sum of its proper divisors (1).

121220111220983 is an equidigital number, since it uses as much as digits as its factorization.

121220111220983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 35.

The spelling of 121220111220983 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred eleven million, two hundred twenty thousand, nine hundred eighty-three".