120113220105 has 24 divisors (see below), whose sum is σ = 208217285640. Its totient is φ = 64053911040.

The previous prime is 120113220083. The next prime is 120113220109. The reversal of 120113220105 is 501022311021.

It can be written as a sum of positive squares in 4 ways, for example, as 45425249424 + 74687970681 = 213132^2 + 273291^2 .

It is a de Polignac number, because none of the positive numbers 2^k-120113220105 is a prime.

It is a super-2 number, since 2×120113220105² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120113220109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 333295 + ... + 592715.

It is an arithmetic number, because the mean of its divisors is an integer number (8675720235).

Almost surely, 2^120113220105 is an apocalyptic number.

120113220105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120113220105 is a deficient number, since it is larger than the sum of its proper divisors (88104065535).

120113220105 is a wasteful number, since it uses less digits than its factorization.

120113220105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269721 (or 269718 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 120113220105 its reverse (501022311021), we get a palindrome (621135531126).

The spelling of 120113220105 in words is "one hundred twenty billion, one hundred thirteen million, two hundred twenty thousand, one hundred five".