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10210120221 = 37486196201
BaseRepresentation
bin10011000001001001…
…00001001000011101
3222100120010211212210
421200210201020131
5131402242321341
64405050151033
7511005406230
oct114044411035
928316124783
1010210120221
11436a38a494
121b8b422479
13c693a8c72
146cc01b417
153eb565c16
hex26092121d

10210120221 has 8 divisors (see below), whose sum is σ = 15558278464. Its totient is φ = 5834354400.

The previous prime is 10210120213. The next prime is 10210120223. The reversal of 10210120221 is 12202101201.

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

It is not a de Polignac number, because 10210120221 - 23 = 10210120213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10210120197 and 10210120206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10210120223) 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, 243098080 + ... + 243098121.

It is an arithmetic number, because the mean of its divisors is an integer number (1944784808).

Almost surely, 210210120221 is an apocalyptic number.

It is an amenable number.

10210120221 is a deficient number, since it is larger than the sum of its proper divisors (5348158243).

10210120221 is an equidigital number, since it uses as much as digits as its factorization.

10210120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486196211.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10210120221 its reverse (12202101201), we get a palindrome (22412221422).

The spelling of 10210120221 in words is "ten billion, two hundred ten million, one hundred twenty thousand, two hundred twenty-one".

Divisors: 1 3 7 21 486196201 1458588603 3403373407 10210120221