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2111221210010 = 2511191010153689
BaseRepresentation
bin11110101110001110100…
…101110001101110011010
321110211102122011201112112
4132232032211301232122
5234042240112210020
64253514233312322
7305350013122403
oct36561645615632
97424378151475
102111221210010
11744400374070
122a12038656a2
13124119a70843
147427dd249aa
1539db74002c5
hex1eb8e971b9a

2111221210010 has 32 divisors (see below), whose sum is σ = 4363863940800. Its totient is φ = 727310655360.

The previous prime is 2111221209949. The next prime is 2111221210013. The reversal of 2111221210010 is 100121221112.

It is not an unprimeable number, because it can be changed into a prime (2111221210013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 505074755 + ... + 505078934.

It is an arithmetic number, because the mean of its divisors is an integer number (136370748150).

Almost surely, 22111221210010 is an apocalyptic number.

2111221210010 is an abundant number, since it is smaller than the sum of its proper divisors (2252642730790).

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

2111221210010 is a wasteful number, since it uses less digits than its factorization.

2111221210010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010153726.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2111221210010 its reverse (100121221112), we get a palindrome (2211342431122).

The spelling of 2111221210010 in words is "two trillion, one hundred eleven billion, two hundred twenty-one million, two hundred ten thousand, ten".

Divisors: 1 2 5 10 11 19 22 38 55 95 110 190 209 418 1045 2090 1010153689 2020307378 5050768445 10101536890 11111690579 19192920091 22223381158 38385840182 55558452895 95964600455 111116905790 191929200910 211122121001 422244242002 1055610605005 2111221210010