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1210112101001 = 1963690110579
BaseRepresentation
bin10001100111000000010…
…011010100101010001001
311021200111210102001202202
4101213000103110222021
5124311302144213001
62323530130005545
7153266464100036
oct21470023245211
94250453361682
101210112101001
11427229808261
121766401168b5
138a16159491b
14427d950c38d
152172783d96b
hex119c04d4a89

1210112101001 has 4 divisors (see below), whose sum is σ = 1273802211600. Its totient is φ = 1146421990404.

The previous prime is 1210112100997. The next prime is 1210112101087. The reversal of 1210112101001 is 1001012110121.

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 1210112101001 - 22 = 1210112100997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1210112103001) 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, 31845055271 + ... + 31845055308.

It is an arithmetic number, because the mean of its divisors is an integer number (318450552900).

Almost surely, 21210112101001 is an apocalyptic number.

It is an amenable number.

1210112101001 is a deficient number, since it is larger than the sum of its proper divisors (63690110599).

1210112101001 is an equidigital number, since it uses as much as digits as its factorization.

1210112101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63690110598.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1210112101001 its reverse (1001012110121), we get a palindrome (2211124211122).

The spelling of 1210112101001 in words is "one trillion, two hundred ten billion, one hundred twelve million, one hundred one thousand, one".

Divisors: 1 19 63690110579 1210112101001