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122120222111 = 1392678332803
BaseRepresentation
bin111000110111011101…
…1101011010110011111
3102200012202202001110022
41301232323223112133
54000100234101421
6132033512102355
711552152521656
oct1615673532637
9380182661408
10122120222111
11478777553a8
121b8019949bb
13b692535774
145ca6b7819d
15329b1b47ab
hex1c6eeeb59f

122120222111 has 8 divisors (see below), whose sum is σ = 123007127040. Its totient is φ = 121233436632.

The previous prime is 122120222101. The next prime is 122120222167. The reversal of 122120222111 is 111222021221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122120222111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122120222111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122120222101) 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, 3706436 + ... + 3739238.

It is an arithmetic number, because the mean of its divisors is an integer number (15375890880).

Almost surely, 2122120222111 is an apocalyptic number.

122120222111 is a deficient number, since it is larger than the sum of its proper divisors (886904929).

122120222111 is a wasteful number, since it uses less digits than its factorization.

122120222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59725.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122120222111 its reverse (111222021221), we get a palindrome (233342243332).

The spelling of 122120222111 in words is "one hundred twenty-two billion, one hundred twenty million, two hundred twenty-two thousand, one hundred eleven".

Divisors: 1 139 26783 32803 3722837 4559617 878562749 122120222111