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121106613062245 = 537861617597757
BaseRepresentation
bin11011100010010101010100…
…101001101100101001100101
3120212210200100002111011122111
4123202111110221230221211
5111333202320420442440
61105323335431201021
734336443525051436
oct3342252451545145
9525720302434574
10121106613062245
11356520319157a8
12116bb333816171
1352763c62c0c15
1421c983c92d48d
15e003da98c4ea
hex6e2554a6ca65

121106613062245 has 16 divisors (see below), whose sum is σ = 149257469653488. Its totient is φ = 94265662602240.

The previous prime is 121106613062213. The next prime is 121106613062321. The reversal of 121106613062245 is 542260316601121.

It can be written as a sum of positive squares in 8 ways, for example, as 1255222214689 + 119851390847556 = 1120367^2 + 10947666^2 .

It is not a de Polignac number, because 121106613062245 - 25 = 121106613062213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121106613062198 and 121106613062207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12140907 + ... + 19738663.

It is an arithmetic number, because the mean of its divisors is an integer number (9328591853343).

Almost surely, 2121106613062245 is an apocalyptic number.

It is an amenable number.

121106613062245 is a deficient number, since it is larger than the sum of its proper divisors (28150856591243).

121106613062245 is an equidigital number, since it uses as much as digits as its factorization.

121106613062245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7683960.

The product of its (nonzero) digits is 103680, while the sum is 40.

Adding to 121106613062245 its reverse (542260316601121), we get a palindrome (663366929663366).

The spelling of 121106613062245 in words is "one hundred twenty-one trillion, one hundred six billion, six hundred thirteen million, sixty-two thousand, two hundred forty-five".

Divisors: 1 5 37 185 86161 430805 3187957 7597757 15939785 37988785 281117009 1405585045 654630340877 3273151704385 24221322612449 121106613062245