120021101200111 has 2 divisors, whose sum is σ = 120021101200112. Its totient is φ = 120021101200110.

The previous prime is 120021101200073. The next prime is 120021101200123. The reversal of 120021101200111 is 111002101120021.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (111002101120021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120021101200111 - 2²¹ = 120021099102959 is a prime.

It is a super-2 number, since 2×120021101200111² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120021101200091 and 120021101200100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120021101204111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60010550600055 + 60010550600056.

It is an arithmetic number, because the mean of its divisors is an integer number (60010550600056).

Almost surely, 2^{120021101200111} is an apocalyptic number.

120021101200111 is a deficient number, since it is larger than the sum of its proper divisors (1).

120021101200111 is an equidigital number, since it uses as much as digits as its factorization.

120021101200111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 120021101200111 its reverse (111002101120021), we get a palindrome (231023202320132).

The spelling of 120021101200111 in words is "one hundred twenty trillion, twenty-one billion, one hundred one million, two hundred thousand, one hundred eleven".