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121122120101 = 1391777490367
BaseRepresentation
bin111000011001101110…
…0001110000110100101
3102120122012122012220012
41300303130032012211
53441024230320401
6131350455220005
711515343014403
oct1606334160645
9376565565805
10121122120101
1147405308604
121b583677605
13b563811468
145c103a2473
15323d75a8bb
hex1c3370e1a5

121122120101 has 8 divisors (see below), whose sum is σ = 122062402560. Its totient is φ = 120182822208.

The previous prime is 121122120083. The next prime is 121122120103. The reversal of 121122120101 is 101021221121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121122120101 - 218 = 121121857957 is a prime.

It is a super-2 number, since 2×1211221201012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121122120103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1820 + ... + 492186.

It is an arithmetic number, because the mean of its divisors is an integer number (15257800320).

Almost surely, 2121122120101 is an apocalyptic number.

It is an amenable number.

121122120101 is a deficient number, since it is larger than the sum of its proper divisors (940282459).

121122120101 is a wasteful number, since it uses less digits than its factorization.

121122120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492283.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121122120101 its reverse (101021221121), we get a palindrome (222143341222).

The spelling of 121122120101 in words is "one hundred twenty-one billion, one hundred twenty-two million, one hundred twenty thousand, one hundred one".

Divisors: 1 139 1777 247003 490367 68161013 871382159 121122120101