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10221311131 = 53192854927
BaseRepresentation
bin10011000010011110…
…01101010010011011
3222101100012101220221
421201033031102123
5131413123424011
64410130100511
7511202465623
oct114117152233
928340171827
1010221311131
114375733379
121b9311a737
13c6b7c68c5
146cd6d1883
153ec526971
hex2613cd49b

10221311131 has 4 divisors (see below), whose sum is σ = 10414166112. Its totient is φ = 10028456152.

The previous prime is 10221311119. The next prime is 10221311147. The reversal of 10221311131 is 13111312201.

It is a happy number.

10221311131 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.

It is a cyclic number.

It is not a de Polignac number, because 10221311131 - 211 = 10221309083 is a prime.

It is a super-2 number, since 2×102213111312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10221311101) 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, 96427411 + ... + 96427516.

It is an arithmetic number, because the mean of its divisors is an integer number (2603541528).

Almost surely, 210221311131 is an apocalyptic number.

10221311131 is a deficient number, since it is larger than the sum of its proper divisors (192854981).

10221311131 is an equidigital number, since it uses as much as digits as its factorization.

10221311131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192854980.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 10221311131 its reverse (13111312201), we get a palindrome (23332623332).

The spelling of 10221311131 in words is "ten billion, two hundred twenty-one million, three hundred eleven thousand, one hundred thirty-one".

Divisors: 1 53 192854927 10221311131