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122122102120 = 2354397694349
BaseRepresentation
bin111000110111100001…
…0110110010101101000
3102200012220021120100021
41301233002312111220
54000101224231440
6132034020250224
711552204512024
oct1615702662550
9380186246307
10122122102120
1147878819927
121b802540974
13b692a433b5
145ca7107384
15329b43684a
hex1c6f0b6568

122122102120 has 32 divisors (see below), whose sum is σ = 274837617000. Its totient is φ = 48837660928.

The previous prime is 122122102103. The next prime is 122122102163. The reversal of 122122102120 is 21201221221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 62877568516 + 59244533604 = 250754^2 + 243402^2 .

It is a junction number, because it is equal to n+sod(n) for n = 122122102094 and 122122102103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171295 + ... + 523054.

Almost surely, 2122122102120 is an apocalyptic number.

122122102120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122122102120 is an abundant number, since it is smaller than the sum of its proper divisors (152715514880).

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

122122102120 is a wasteful number, since it uses less digits than its factorization.

122122102120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698757 (or 698753 counting only the distinct ones).

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

Adding to 122122102120 its reverse (21201221221), we get a palindrome (143323323341).

The spelling of 122122102120 in words is "one hundred twenty-two billion, one hundred twenty-two million, one hundred two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 4397 8794 17588 21985 35176 43970 87940 175880 694349 1388698 2777396 3471745 5554792 6943490 13886980 27773960 3053052553 6106105106 12212210212 15265262765 24424420424 30530525530 61061051060 122122102120