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120115412221 = 723746058461
BaseRepresentation
bin110111111011101101…
…1111011110011111101
3102111001001100011022011
41233313123323303331
53431444021142341
6131102534051221
711451400105120
oct1576733736375
9374031304264
10120115412221
1146a39023022
121b3424a9b11
13b43309601c
145b567ca3b7
1531d01a1b81
hex1bf76fbcfd

120115412221 has 8 divisors (see below), whose sum is σ = 143243224704. Its totient is φ = 98479716720.

The previous prime is 120115412201. The next prime is 120115412269. The reversal of 120115412221 is 122214511021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120115412221 - 29 = 120115411709 is a prime.

It is a super-3 number, since 3×1201154122213 (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120115412192 and 120115412201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120115412201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373029070 + ... + 373029391.

It is an arithmetic number, because the mean of its divisors is an integer number (17905403088).

Almost surely, 2120115412221 is an apocalyptic number.

It is an amenable number.

120115412221 is a deficient number, since it is larger than the sum of its proper divisors (23127812483).

120115412221 is an equidigital number, since it uses as much as digits as its factorization.

120115412221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746058491.

The product of its (nonzero) digits is 320, while the sum is 22.

Adding to 120115412221 its reverse (122214511021), we get a palindrome (242329923242).

The spelling of 120115412221 in words is "one hundred twenty billion, one hundred fifteen million, four hundred twelve thousand, two hundred twenty-one".

Divisors: 1 7 23 161 746058461 5222409227 17159344603 120115412221