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22012103210 = 257093104669
BaseRepresentation
bin10100100000000001…
…100000101000101010
32002211001122200221212
4110200001200220222
5330040044300320
614040123433122
71406323535006
oct244001405052
962731580855
1022012103210
119376292a39
1243239857a2
1320ca4cbc56
1410cb611706
1588c71e9c5
hex520060a2a

22012103210 has 16 divisors (see below), whose sum is σ = 39677682600. Its totient is φ = 8792419776.

The previous prime is 22012103161. The next prime is 22012103213. The reversal of 22012103210 is 1230121022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 20336756449 + 1675346761 = 142607^2 + 40931^2 .

It is not an unprimeable number, because it can be changed into a prime (22012103213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1545245 + ... + 1559424.

Almost surely, 222012103210 is an apocalyptic number.

22012103210 is a deficient number, since it is larger than the sum of its proper divisors (17665579390).

22012103210 is a wasteful number, since it uses less digits than its factorization.

22012103210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3105385.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 22012103210 its reverse (1230121022), we get a palindrome (23242224232).

The spelling of 22012103210 in words is "twenty-two billion, twelve million, one hundred three thousand, two hundred ten".

Divisors: 1 2 5 10 709 1418 3545 7090 3104669 6209338 15523345 31046690 2201210321 4402420642 11006051605 22012103210