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20120002212020 = 22531132724454873
BaseRepresentation
bin1001001001100100011011…
…00101011011000010110100
32122020110020112210111110212
410210302031211123002310
510114121231031241040
6110443000150004552
74144423261006214
oct444621545330264
978213215714425
1020120002212020
1164579327a3077
12230b484046758
13b2c400a93b99
144d7b559bc244
1524d57a126d65
hex124c8d95b0b4

20120002212020 has 48 divisors (see below), whose sum is σ = 43647841671168. Its totient is φ = 7782518465280.

The previous prime is 20120002211929. The next prime is 20120002212031. The reversal of 20120002212020 is 2021220002102.

It is a junction number, because it is equal to n+sod(n) for n = 20120002211986 and 20120002212004.

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, 11404697 + ... + 13050176.

It is an arithmetic number, because the mean of its divisors is an integer number (909330034816).

Almost surely, 220120002212020 is an apocalyptic number.

20120002212020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20120002212020 is an abundant number, since it is smaller than the sum of its proper divisors (23527839459148).

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

20120002212020 is a wasteful number, since it uses less digits than its factorization.

20120002212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24456240 (or 24456238 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20120002212020 its reverse (2021220002102), we get a palindrome (22141222214122).

The spelling of 20120002212020 in words is "twenty trillion, one hundred twenty billion, two million, two hundred twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 1327 2654 5308 6635 13270 26540 41137 82274 164548 205685 411370 822740 24454873 48909746 97819492 122274365 244548730 489097460 758101063 1516202126 3032404252 3790505315 7581010630 15162021260 32451616471 64903232942 129806465884 162258082355 324516164710 649032329420 1006000110601 2012000221202 4024000442404 5030000553005 10060001106010 20120002212020