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2010211011220 = 225731376856857
BaseRepresentation
bin11101010000001001111…
…010011100101010010100
321010011201001122222001211
4131100021322130222110
5230413403004324340
64135251142231204
7265142621445046
oct35201172345224
97104631588054
102010211011220
11705586789735
12285713725504
1311773cb92a49
146d41aa5da96
153745466c5ea
hex1d409e9ca94

2010211011220 has 24 divisors (see below), whose sum is σ = 4279271114664. Its totient is φ = 793069549056.

The previous prime is 2010211011217. The next prime is 2010211011287. The reversal of 2010211011220 is 221101120102.

It can be written as a sum of positive squares in 4 ways, for example, as 364753186704 + 1645457824516 = 603948^2 + 1282754^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2010211011220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 688426969 + ... + 688429888.

It is an arithmetic number, because the mean of its divisors is an integer number (178302963111).

Almost surely, 22010211011220 is an apocalyptic number.

2010211011220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2010211011220 is an abundant number, since it is smaller than the sum of its proper divisors (2269060103444).

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

2010211011220 is a wasteful number, since it uses less digits than its factorization.

2010211011220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376856939 (or 1376856937 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2010211011220 its reverse (221101120102), we get a palindrome (2231312131322).

The spelling of 2010211011220 in words is "two trillion, ten billion, two hundred eleven million, eleven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 73 146 292 365 730 1460 1376856857 2753713714 5507427428 6884284285 13768568570 27537137140 100510550561 201021101122 402042202244 502552752805 1005105505610 2010211011220