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10212310221 = 328112114247
BaseRepresentation
bin10011000001011001…
…10111110011001101
3222100201021002222220
421200230313303031
5131403322411341
64405205125553
7511033130121
oct114054676315
928321232886
1010212310221
114370645903
121b900b98b9
13c69994a19
146cc42b581
153eb849a66
hex260b37ccd

10212310221 has 8 divisors (see below), whose sum is σ = 13664871744. Its totient is φ = 6783977760.

The previous prime is 10212310219. The next prime is 10212310237. The reversal of 10212310221 is 12201321201.

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

It is not a de Polignac number, because 10212310221 - 21 = 10212310219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10212310221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212310291) 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, 6056281 + ... + 6057966.

It is an arithmetic number, because the mean of its divisors is an integer number (1708108968).

Almost surely, 210212310221 is an apocalyptic number.

It is an amenable number.

10212310221 is a deficient number, since it is larger than the sum of its proper divisors (3452561523).

10212310221 is a wasteful number, since it uses less digits than its factorization.

10212310221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12114531.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 10212310221 its reverse (12201321201), we get a palindrome (22413631422).

The spelling of 10212310221 in words is "ten billion, two hundred twelve million, three hundred ten thousand, two hundred twenty-one".

Divisors: 1 3 281 843 12114247 36342741 3404103407 10212310221