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2010221011220 = 225123298152409
BaseRepresentation
bin11101010000001010100…
…000100110000100010100
321010011201202111000111012
4131100022200212010110
5230413413034324340
64135252140431352
7265143102444422
oct35201240460424
97104652430435
102010221011220
117055913998a4
12285716b48558
13117741c845c6
146d41c104112
1537455495565
hex1d40a826114

2010221011220 has 24 divisors (see below), whose sum is σ = 4221807042600. Its totient is φ = 804023086592.

The previous prime is 2010221011199. The next prime is 2010221011231. The reversal of 2010221011220 is 221101220102.

It can be written as a sum of positive squares in 4 ways, for example, as 6246689296 + 2003974321924 = 79036^2 + 1415618^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2010221011195 and 2010221011204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3829625 + ... + 4322784.

It is an arithmetic number, because the mean of its divisors is an integer number (175908626775).

Almost surely, 22010221011220 is an apocalyptic number.

2010221011220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2010221011220 is an abundant number, since it is smaller than the sum of its proper divisors (2211586031380).

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

2010221011220 is a wasteful number, since it uses less digits than its factorization.

2010221011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8164747 (or 8164745 counting only the distinct ones).

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

Adding to 2010221011220 its reverse (221101220102), we get a palindrome (2231322231322).

The spelling of 2010221011220 in words is "two trillion, ten billion, two hundred twenty-one million, eleven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 12329 24658 49316 61645 123290 246580 8152409 16304818 32609636 40762045 81524090 163048180 100511050561 201022101122 402044202244 502555252805 1005110505610 2010221011220