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121110110201 = 1975037871553
BaseRepresentation
bin111000011001010111…
…0011001111111111001
3102120121101001001102002
41300302232121333321
53441013142011301
6131345345550345
711515135644203
oct1606256317771
9376541031362
10121110110201
11473a9555373
121b57b6453b5
13b561197b02
145c0c957773
15323c68716b
hex1c32b99ff9

121110110201 has 16 divisors (see below), whose sum is σ = 122200493184. Its totient is φ = 120025645824.

The previous prime is 121110110197. The next prime is 121110110263. The reversal of 121110110201 is 102011011121.

It is a cyclic number.

It is not a de Polignac number, because 121110110201 - 22 = 121110110197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121110110801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77983841 + ... + 77985393.

It is an arithmetic number, because the mean of its divisors is an integer number (7637530824).

Almost surely, 2121110110201 is an apocalyptic number.

It is an amenable number.

121110110201 is a deficient number, since it is larger than the sum of its proper divisors (1090382983).

121110110201 is a wasteful number, since it uses less digits than its factorization.

121110110201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3040.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 121110110201 its reverse (102011011121), we get a palindrome (223121121322).

The spelling of 121110110201 in words is "one hundred twenty-one billion, one hundred ten million, one hundred ten thousand, two hundred one".

Divisors: 1 197 503 787 1553 99091 155039 305941 395861 781159 1222211 77984617 153888323 240775567 614772133 121110110201