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212020112011020 = 223519249183576733
BaseRepresentation
bin110000001101010011000111…
…011101100010111100001100
31000210200220222011000011211220
4300031103013131202330030
5210242214142133323040
62030532410025443340
762441643011522625
oct6015230735427414
91023626864004756
10212020112011020
1161613251971765
121b942b02640550
13913c545613bb1
143a4db84724a4c
15197a1e29a42d0
hexc0d4c7762f0c

212020112011020 has 48 divisors (see below), whose sum is σ = 593687157756000. Its totient is φ = 56535759000576.

The previous prime is 212020112010997. The next prime is 212020112011031. The reversal of 212020112011020 is 20110211020212.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90633427 + ... + 92943306.

It is an arithmetic number, because the mean of its divisors is an integer number (12368482453250).

Almost surely, 2212020112011020 is an apocalyptic number.

212020112011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212020112011020 is an abundant number, since it is smaller than the sum of its proper divisors (381667045744980).

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

212020112011020 is a wasteful number, since it uses less digits than its factorization.

212020112011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183595994 (or 183595992 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212020112011020 its reverse (20110211020212), we get a palindrome (232130323031232).

The spelling of 212020112011020 in words is "two hundred twelve trillion, twenty billion, one hundred twelve million, eleven thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 19249 38498 57747 76996 96245 115494 192490 230988 288735 384980 577470 1154940 183576733 367153466 550730199 734306932 917883665 1101460398 1835767330 2202920796 2753650995 3671534660 5507301990 11014603980 3533668533517 7067337067034 10601005600551 14134674134068 17668342667585 21202011201102 35336685335170 42404022402204 53005028002755 70673370670340 106010056005510 212020112011020