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122002142205 = 3541198377467
BaseRepresentation
bin111000110011111100…
…1001111001111111101
3102122220112112222021110
41301213321033033331
53444330022022310
6132014053152233
711546220045456
oct1614771171775
9378815488243
10122002142205
11478170351a9
121b78a32b679
13b673c317b8
145c951dc12d
153290b3cd20
hex1c67e4f3fd

122002142205 has 16 divisors (see below), whose sum is σ = 199964487744. Its totient is φ = 63480789120.

The previous prime is 122002142189. The next prime is 122002142231. The reversal of 122002142205 is 502241200221.

It is not a de Polignac number, because 122002142205 - 24 = 122002142189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99188119 + ... + 99189348.

It is an arithmetic number, because the mean of its divisors is an integer number (12497780484).

Almost surely, 2122002142205 is an apocalyptic number.

122002142205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122002142205 is a deficient number, since it is larger than the sum of its proper divisors (77962345539).

122002142205 is a wasteful number, since it uses less digits than its factorization.

122002142205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198377516.

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 122002142205 its reverse (502241200221), we get a palindrome (624243342426).

The spelling of 122002142205 in words is "one hundred twenty-two billion, two million, one hundred forty-two thousand, two hundred five".

Divisors: 1 3 5 15 41 123 205 615 198377467 595132401 991887335 2975662005 8133476147 24400428441 40667380735 122002142205