120011011201021 has 2 divisors, whose sum is σ = 120011011201022. Its totient is φ = 120011011201020.

The previous prime is 120011011201007. The next prime is 120011011201031. The reversal of 120011011201021 is 120102110110021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110525565976996 + 9485445224025 = 10513114^2 + 3079845^2 .

It is a cyclic number.

It is not a de Polignac number, because 120011011201021 - 2¹¹ = 120011011198973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120011011200992 and 120011011201010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120011011201031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60005505600510 + 60005505600511.

It is an arithmetic number, because the mean of its divisors is an integer number (60005505600511).

Almost surely, 2^{120011011201021} is an apocalyptic number.

It is an amenable number.

120011011201021 is a deficient number, since it is larger than the sum of its proper divisors (1).

120011011201021 is an equidigital number, since it uses as much as digits as its factorization.

120011011201021 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 120011011201021 its reverse (120102110110021), we get a palindrome (240113121311042).

The spelling of 120011011201021 in words is "one hundred twenty trillion, eleven billion, eleven million, two hundred one thousand, twenty-one".