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10002112222220 = 2251972538607163
BaseRepresentation
bin1001000110001100110001…
…0110001001010000001100
31022102012012101202020222222
42101203030112021100030
52302333311212102340
633134523521154512
72051425444054466
oct221431426112014
938365171666888
1010002112222220
11320696565a918
12115658718ba38
1357726c935561
1426816787b136
151252a05c18b5
hex918cc58940c

10002112222220 has 24 divisors (see below), whose sum is σ = 21111057175824. Its totient is φ = 3980536030016.

The previous prime is 10002112222217. The next prime is 10002112222229. The reversal of 10002112222220 is 2222221120001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (10002112222229) 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, 1269299642 + ... + 1269307521.

It is an arithmetic number, because the mean of its divisors is an integer number (879627382326).

Almost surely, 210002112222220 is an apocalyptic number.

10002112222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10002112222220 is an abundant number, since it is smaller than the sum of its proper divisors (11108944953604).

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

10002112222220 is a wasteful number, since it uses less digits than its factorization.

10002112222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2538607369 (or 2538607367 counting only the distinct ones).

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

Adding to 10002112222220 its reverse (2222221120001), we get a palindrome (12224333342221).

The spelling of 10002112222220 in words is "ten trillion, two billion, one hundred twelve million, two hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 197 394 788 985 1970 3940 2538607163 5077214326 10154428652 12693035815 25386071630 50772143260 500105611111 1000211222222 2000422444444 2500528055555 5001056111110 10002112222220