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121120201222 = 21671471246523
BaseRepresentation
bin111000011001101010…
…0111001101000000110
3102120122002000201200121
41300303110321220012
53441023232414342
6131350350132154
711515320503116
oct1606324715006
9376562021617
10121120201222
1147404217959
121b582ab105a
13b5632bbc27
145c10023046
15323d4cc067
hex1c33539a06

121120201222 has 16 divisors (see below), whose sum is σ = 182893197312. Its totient is φ = 60156298440.

The previous prime is 121120201207. The next prime is 121120201231. The reversal of 121120201222 is 222102021121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121120201196 and 121120201205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368053 + ... + 614575.

It is an arithmetic number, because the mean of its divisors is an integer number (11430824832).

Almost surely, 2121120201222 is an apocalyptic number.

121120201222 is a deficient number, since it is larger than the sum of its proper divisors (61772996090).

121120201222 is a wasteful number, since it uses less digits than its factorization.

121120201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248163.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121120201222 its reverse (222102021121), we get a palindrome (343222222343).

The spelling of 121120201222 in words is "one hundred twenty-one billion, one hundred twenty million, two hundred one thousand, two hundred twenty-two".

Divisors: 1 2 167 334 1471 2942 245657 246523 491314 493046 41169341 82338682 362635333 725270666 60560100611 121120201222