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221100107 is a prime number
BaseRepresentation
bin11010010110110…
…11100001001011
3120102001001022212
431023123201023
5423100200412
633534535335
75323214504
oct1513334113
9512031285
10221100107
11103894868
126206754b
1336a64387
1421515bab
1514626222
hexd2db84b

221100107 has 2 divisors, whose sum is σ = 221100108. Its totient is φ = 221100106.

The previous prime is 221100101. The next prime is 221100133. The reversal of 221100107 is 701001122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221100107 - 210 = 221099083 is a prime.

It is a super-2 number, since 2×2211001072 = 97770514630822898, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221100091 and 221100100.

It is not a weakly prime, because it can be changed into another prime (221100101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110550053 + 110550054.

It is an arithmetic number, because the mean of its divisors is an integer number (110550054).

Almost surely, 2221100107 is an apocalyptic number.

221100107 is a deficient number, since it is larger than the sum of its proper divisors (1).

221100107 is an equidigital number, since it uses as much as digits as its factorization.

221100107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 221100107 is about 14869.4353288886. The cubic root of 221100107 is about 604.6856340979.

Adding to 221100107 its reverse (701001122), we get a palindrome (922101229).

The spelling of 221100107 in words is "two hundred twenty-one million, one hundred thousand, one hundred seven".