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11002210121 = 71571744303
BaseRepresentation
bin10100011111100100…
…00110011101001001
31001101202121011221202
422033302012131021
5140013031210441
65015423313545
7536434146230
oct121762063511
931352534852
1011002210121
114736508341
12217074b8b5
13106451c606
147652c7b17
15445d7919b
hex28fc86749

11002210121 has 4 divisors (see below), whose sum is σ = 12573954432. Its totient is φ = 9430465812.

The previous prime is 11002210117. The next prime is 11002210123. The reversal of 11002210121 is 12101220011.

11002210121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12101220011 = 79715183463.

It is a cyclic number.

It is not a de Polignac number, because 11002210121 - 22 = 11002210117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11002210123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 785872145 + ... + 785872158.

It is an arithmetic number, because the mean of its divisors is an integer number (3143488608).

Almost surely, 211002210121 is an apocalyptic number.

It is an amenable number.

11002210121 is a deficient number, since it is larger than the sum of its proper divisors (1571744311).

11002210121 is an equidigital number, since it uses as much as digits as its factorization.

11002210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571744310.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11002210121 its reverse (12101220011), we get a palindrome (23103430132).

The spelling of 11002210121 in words is "eleven billion, two million, two hundred ten thousand, one hundred twenty-one".

Divisors: 1 7 1571744303 11002210121