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122001212310 = 23532497125141
BaseRepresentation
bin111000110011111010…
…1101100001110010110
3102122220110210201200220
41301213311230032112
53444324302243220
6132014021215210
711546206123425
oct1614765541626
9378813721626
10122001212310
114781655a59a
121b789b61506
13b673997473
145c950392bc
153290a07540
hex1c67d6c396

122001212310 has 32 divisors (see below), whose sum is σ = 292814259552. Its totient is φ = 32532395520.

The previous prime is 122001212279. The next prime is 122001212321. The reversal of 122001212310 is 13212100221.

It is a super-2 number, since 2×1220012123102 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 122001212310.

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, 912340 + ... + 1037480.

It is an arithmetic number, because the mean of its divisors is an integer number (9150445611).

Almost surely, 2122001212310 is an apocalyptic number.

122001212310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122001212310 is an abundant number, since it is smaller than the sum of its proper divisors (170813047242).

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

122001212310 is a wasteful number, since it uses less digits than its factorization.

122001212310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157648.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 122001212310 its reverse (13212100221), we get a palindrome (135213312531).

The spelling of 122001212310 in words is "one hundred twenty-two billion, one million, two hundred twelve thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 15 30 32497 64994 97491 125141 162485 194982 250282 324970 375423 487455 625705 750846 974910 1251410 1877115 3754230 4066707077 8133414154 12200121231 20333535385 24400242462 40667070770 61000606155 122001212310