120021211100117 has 2 divisors, whose sum is σ = 120021211100118. Its totient is φ = 120021211100116.

The previous prime is 120021211100071. The next prime is 120021211100221. The reversal of 120021211100117 is 711001112120021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119453839096036 + 567372004081 = 10929494^2 + 753241^2 .

It is a cyclic number.

It is not a de Polignac number, because 120021211100117 - 2⁶ = 120021211100053 is a prime.

It is a super-2 number, since 2×120021211100117² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120021211120117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60010605550058 + 60010605550059.

It is an arithmetic number, because the mean of its divisors is an integer number (60010605550059).

Almost surely, 2^{120021211100117} is an apocalyptic number.

It is an amenable number.

120021211100117 is a deficient number, since it is larger than the sum of its proper divisors (1).

120021211100117 is an equidigital number, since it uses as much as digits as its factorization.

120021211100117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 20.

Adding to 120021211100117 its reverse (711001112120021), we get a palindrome (831022323220138).

The spelling of 120021211100117 in words is "one hundred twenty trillion, twenty-one billion, two hundred eleven million, one hundred thousand, one hundred seventeen".