Search a number
-
+
1012212000220 = 225971278140823
BaseRepresentation
bin11101011101011001000…
…10010110010111011100
310120202200210110022110111
432232230202112113130
5113041002233001340
62053000452015404
7133062362020141
oct16565442262734
93522623408414
101012212000220
11360305316463
1214420b901564
13745b3329785
1436dc428c3c8
151b4e3911aea
hexebac8965dc

1012212000220 has 48 divisors (see below), whose sum is σ = 2147779706688. Its totient is φ = 400669562880.

The previous prime is 1012212000197. The next prime is 1012212000227. The reversal of 1012212000220 is 220002122101.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1012212000220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012212000227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24774729 + ... + 24815551.

It is an arithmetic number, because the mean of its divisors is an integer number (44745410556).

Almost surely, 21012212000220 is an apocalyptic number.

1012212000220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012212000220 is an abundant number, since it is smaller than the sum of its proper divisors (1135567706468).

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

1012212000220 is a wasteful number, since it uses less digits than its factorization.

1012212000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53710 (or 53708 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1012212000220 its reverse (220002122101), we get a palindrome (1232214122321).

The spelling of 1012212000220 in words is "one trillion, twelve billion, two hundred twelve million, two hundred twenty", and thus it is an aban number.

Divisors: 1 2 4 5 10 20 97 194 388 485 970 1940 12781 25562 40823 51124 63905 81646 127810 163292 204115 255620 408230 816460 1239757 2479514 3959831 4959028 6198785 7919662 12397570 15839324 19799155 24795140 39598310 79196620 521758763 1043517526 2087035052 2608793815 5217587630 10435175260 50610600011 101221200022 202442400044 253053000055 506106000110 1012212000220