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1210100212201 = 1531790398571
BaseRepresentation
bin10001100110111111100…
…101111110000111101001
311021200110222001001101211
4101212333211332013221
5124311241123242301
62323525023113121
7153266261042566
oct21467745760751
94250428031354
101210100212201
11427223028001
121766381427a1
138a15bc9142a
14427d7ad586d
1521726791051
hex119bf97e1e9

1210100212201 has 4 divisors (see below), whose sum is σ = 1210890612304. Its totient is φ = 1209309812100.

The previous prime is 1210100212163. The next prime is 1210100212229. The reversal of 1210100212201 is 1022120010121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1210100212201 - 213 = 1210100204009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1210100212271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395197755 + ... + 395200816.

It is an arithmetic number, because the mean of its divisors is an integer number (302722653076).

Almost surely, 21210100212201 is an apocalyptic number.

It is an amenable number.

1210100212201 is a deficient number, since it is larger than the sum of its proper divisors (790400103).

1210100212201 is an equidigital number, since it uses as much as digits as its factorization.

1210100212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790400102.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1210100212201 its reverse (1022120010121), we get a palindrome (2232220222322).

The spelling of 1210100212201 in words is "one trillion, two hundred ten billion, one hundred million, two hundred twelve thousand, two hundred one".

Divisors: 1 1531 790398571 1210100212201