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101211210201020 = 22517319602581613
BaseRepresentation
bin10111000000110100010010…
…001110110011011110111100
3111021100200211020222212002112
4113000310102032303132330
5101231221024302413040
6555131442120513152
730214161066033143
oct2700642216633674
9437320736885075
10101211210201020
112a281484651207
12b4274b161b7b8
13446223a07479a
141adc9120c675a
15ba7b0871b365
hex5c0d123b37bc

101211210201020 has 48 divisors (see below), whose sum is σ = 232305654405888. Its totient is φ = 36873913390080.

The previous prime is 101211210200993. The next prime is 101211210201047. The reversal of 101211210201020 is 20102012112101.

It is an interprime number because it is at equal distance from previous prime (101211210200993) and next prime (101211210201047).

It is a junction number, because it is equal to n+sod(n) for n = 101211210200986 and 101211210201004.

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, 4801280267 + ... + 4801301346.

It is an arithmetic number, because the mean of its divisors is an integer number (4839701133456).

Almost surely, 2101211210201020 is an apocalyptic number.

101211210201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101211210201020 is an abundant number, since it is smaller than the sum of its proper divisors (131094444204868).

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

101211210201020 is a wasteful number, since it uses less digits than its factorization.

101211210201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9602581670 (or 9602581668 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 101211210201020 its reverse (20102012112101), we get a palindrome (121313222313121).

The spelling of 101211210201020 in words is "one hundred one trillion, two hundred eleven billion, two hundred ten million, two hundred one thousand, twenty".

Divisors: 1 2 4 5 10 17 20 31 34 62 68 85 124 155 170 310 340 527 620 1054 2108 2635 5270 10540 9602581613 19205163226 38410326452 48012908065 96025816130 163243887421 192051632260 297680030003 326487774842 595360060006 652975549684 816219437105 1190720120012 1488400150015 1632438874210 2976800300030 3264877748420 5060560510051 5953600600060 10121121020102 20242242040204 25302802550255 50605605100510 101211210201020