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121120022111110 = 25112937968658969
BaseRepresentation
bin11011100010100001110011…
…111001001010001110000110
3120212211221221120222102122221
4123202201303321022032012
5111333412301130023420
61105333434153442554
734340430026066401
oct3342416371121606
9525757846872587
10121120022111110
1135657792986670
1211701a5641045a
135277752351b69
1421ca351736d38
15e00922c8dcaa
hex6e2873e4a386

121120022111110 has 32 divisors (see below), whose sum is σ = 246036910125600. Its totient is φ = 42524898044160.

The previous prime is 121120022111087. The next prime is 121120022111147. The reversal of 121120022111110 is 11111220021121.

It is a congruent number.

It is an unprimeable number.

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, 18984326295 + ... + 18984332674.

It is an arithmetic number, because the mean of its divisors is an integer number (7688653441425).

Almost surely, 2121120022111110 is an apocalyptic number.

121120022111110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121120022111110 is an abundant number, since it is smaller than the sum of its proper divisors (124916888014490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121120022111110 is a wasteful number, since it uses less digits than its factorization.

121120022111110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37968659016.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 121120022111110 its reverse (11111220021121), we get a palindrome (132231242132231).

The spelling of 121120022111110 in words is "one hundred twenty-one trillion, one hundred twenty billion, twenty-two million, one hundred eleven thousand, one hundred ten".

Divisors: 1 2 5 10 11 22 29 55 58 110 145 290 319 638 1595 3190 37968658969 75937317938 189843294845 379686589690 417655248659 835310497318 1101091110101 2088276243295 2202182220202 4176552486590 5505455550505 11010911101010 12112002211111 24224004422222 60560011055555 121120022111110