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22010103220 = 2257222459289
BaseRepresentation
bin10100011111111001…
…111000010110110100
32002210220220002111011
4110133321320112310
5330034041300340
614040012522004
71406300535100
oct243771702664
962726802434
1022010103220
119375147356
124323180304
1320c9c7b821
1410cb250900
1588c4770ea
hex51fe785b4

22010103220 has 36 divisors (see below), whose sum is σ = 53767540260. Its totient is φ = 7546320768.

The previous prime is 22010103217. The next prime is 22010103221. The reversal of 22010103220 is 2230101022.

It can be written as a sum of positive squares in 2 ways, for example, as 7935602724 + 14074500496 = 89082^2 + 118636^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22010103220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22010103221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11228665 + ... + 11230624.

It is an arithmetic number, because the mean of its divisors is an integer number (1493542785).

Almost surely, 222010103220 is an apocalyptic number.

22010103220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22010103220 is an abundant number, since it is smaller than the sum of its proper divisors (31757437040).

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

22010103220 is a wasteful number, since it uses less digits than its factorization.

22010103220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22459312 (or 22459303 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 22010103220 its reverse (2230101022), we get a palindrome (24240204242).

The spelling of 22010103220 in words is "twenty-two billion, ten million, one hundred three thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 70 98 140 196 245 490 980 22459289 44918578 89837156 112296445 157215023 224592890 314430046 449185780 628860092 786075115 1100505161 1572150230 2201010322 3144300460 4402020644 5502525805 11005051610 22010103220