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1210223011001 = 42110061285721
BaseRepresentation
bin10001100111000110111…
…010011010010010111001
311021200210112002212200112
4101213012322122102321
5124312014042323001
62323545131114105
7153302311601564
oct21470672322271
94250715085615
101210223011001
11427286380614
121766712a2935
138a17b558244
144280a13d4db
152173244acbb
hex119c6e9a4b9

1210223011001 has 8 divisors (see below), whose sum is σ = 1213222470408. Its totient is φ = 1207224144000.

The previous prime is 1210223010973. The next prime is 1210223011007. The reversal of 1210223011001 is 1001103220121.

It can be written as a sum of positive squares in 4 ways, for example, as 12555426601 + 1197667584400 = 112051^2 + 1094380^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1210223011001 - 218 = 1210222748857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1210223011007) 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, 4092821 + ... + 4378541.

It is an arithmetic number, because the mean of its divisors is an integer number (151652808801).

Almost surely, 21210223011001 is an apocalyptic number.

It is an amenable number.

1210223011001 is a deficient number, since it is larger than the sum of its proper divisors (2999459407).

1210223011001 is a wasteful number, since it uses less digits than its factorization.

1210223011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296203.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1210223011001 its reverse (1001103220121), we get a palindrome (2211326231122).

The spelling of 1210223011001 in words is "one trillion, two hundred ten billion, two hundred twenty-three million, eleven thousand, one".

Divisors: 1 421 10061 285721 4235681 120288541 2874638981 1210223011001