120170121250 has 20 divisors (see below), whose sum is σ = 225246877614. Its totient is φ = 48068048000.

The previous prime is 120170121241. The next prime is 120170121259. The reversal of 120170121250 is 52121071021.

It is an interprime number because it is at equal distance from previous prime (120170121241) and next prime (120170121259).

It can be written as a sum of positive squares in 5 ways, for example, as 11904773881 + 108265347369 = 109109^2 + 329037^2 .

It is not an unprimeable number, because it can be changed into a prime (120170121259) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 48066799 + ... + 48069298.

Almost surely, 2^120170121250 is an apocalyptic number.

120170121250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120170121250 is a deficient number, since it is larger than the sum of its proper divisors (105076756364).

120170121250 is an frugal number, since it uses more digits than its factorization.

120170121250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96136119 (or 96136104 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 22.

Adding to 120170121250 its reverse (52121071021), we get a palindrome (172291192271).

The spelling of 120170121250 in words is "one hundred twenty billion, one hundred seventy million, one hundred twenty-one thousand, two hundred fifty".