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1020112212020 = 225116530970999
BaseRepresentation
bin11101101100000110110…
…11010001000000110100
310121112002101002122200112
432312003123101000310
5113203142211241040
62100344425002152
7133462221506456
oct16660333210064
93545071078615
101020112212020
11363699827520
12145855623358
1375271ca1605
14375335bc2d6
151b80729a365
hexed836d1034

1020112212020 has 48 divisors (see below), whose sum is σ = 2337053040000. Its totient is φ = 370938990720.

The previous prime is 1020112211933. The next prime is 1020112212083. The reversal of 1020112212020 is 202122110201.

It is a super-2 number, since 2×10201122120202 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1020112211986 and 1020112212004.

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, 14332481 + ... + 14403479.

It is an arithmetic number, because the mean of its divisors is an integer number (48688605000).

Almost surely, 21020112212020 is an apocalyptic number.

1020112212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020112212020 is an abundant number, since it is smaller than the sum of its proper divisors (1316940827980).

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

1020112212020 is a wasteful number, since it uses less digits than its factorization.

1020112212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136328 (or 136326 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1020112212020 its reverse (202122110201), we get a palindrome (1222234322221).

It can be divided in two parts, 10201 and 12212020, that added together give a palindrome (12222221).

The spelling of 1020112212020 in words is "one trillion, twenty billion, one hundred twelve million, two hundred twelve thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 65309 70999 130618 141998 261236 283996 326545 354995 653090 709990 718399 780989 1306180 1419980 1436798 1561978 2873596 3123956 3591995 3904945 7183990 7809890 14367980 15619780 4636873691 9273747382 18547494764 23184368455 46368736910 51005610601 92737473820 102011221202 204022442404 255028053005 510056106010 1020112212020