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10232202121 = 17359145677
BaseRepresentation
bin10011000011110001…
…10000001110001001
3222102002200201112221
421201320300032021
5131423420431441
64411155334041
7511364166031
oct114170601611
928362621487
1010232202121
1143808a1999
121b968b1321
13c70b3ab8b
146d0d288c1
153ed4788d1
hex261e30389

10232202121 has 4 divisors (see below), whose sum is σ = 10291347972. Its totient is φ = 10173056272.

The previous prime is 10232202109. The next prime is 10232202143. The reversal of 10232202121 is 12120223201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12120223201 = 62871927823.

It can be written as a sum of positive squares in 2 ways, for example, as 4332272400 + 5899929721 = 65820^2 + 76811^2 .

It is a cyclic number.

It is not a de Polignac number, because 10232202121 - 213 = 10232193929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10232202095 and 10232202104.

It is not an unprimeable number, because it can be changed into a prime (10232202151) 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, 29572666 + ... + 29573011.

It is an arithmetic number, because the mean of its divisors is an integer number (2572836993).

Almost surely, 210232202121 is an apocalyptic number.

It is an amenable number.

10232202121 is a deficient number, since it is larger than the sum of its proper divisors (59145851).

10232202121 is an equidigital number, since it uses as much as digits as its factorization.

10232202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59145850.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 10232202121 its reverse (12120223201), we get a palindrome (22352425322).

The spelling of 10232202121 in words is "ten billion, two hundred thirty-two million, two hundred two thousand, one hundred twenty-one".

Divisors: 1 173 59145677 10232202121