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10201222210220 = 225795164150561
BaseRepresentation
bin1001010001110010100000…
…1110011110001010101100
31100010020010201022122112222
42110130220032132022230
52314114100341211340
633410213215214512
72102004540042356
oct224345016361254
940106121278488
1010201222210220
11328334aaa0908
121189094817438
1358cc817472c2
14273a556820d6
1512a55583d8b5
hex9472839e2ac

10201222210220 has 24 divisors (see below), whose sum is σ = 21425261299008. Its totient is φ = 4079975616000.

The previous prime is 10201222210163. The next prime is 10201222210229. The reversal of 10201222210220 is 2201222210201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (10201222210229) 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, 31916261 + ... + 32234300.

It is an arithmetic number, because the mean of its divisors is an integer number (892719220792).

Almost surely, 210201222210220 is an apocalyptic number.

10201222210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10201222210220 is an abundant number, since it is smaller than the sum of its proper divisors (11224039088788).

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

10201222210220 is a wasteful number, since it uses less digits than its factorization.

10201222210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64158521 (or 64158519 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 10201222210220 its reverse (2201222210201), we get a palindrome (12402444420421).

The spelling of 10201222210220 in words is "ten trillion, two hundred one billion, two hundred twenty-two million, two hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 7951 15902 31804 39755 79510 159020 64150561 128301122 256602244 320752805 641505610 1283011220 510061110511 1020122221022 2040244442044 2550305552555 5100611105110 10201222210220