120201200011021 has 2 divisors, whose sum is σ = 120201200011022. Its totient is φ = 120201200011020.

The previous prime is 120201200011019. The next prime is 120201200011027. The reversal of 120201200011021 is 120110002102021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81698802710121 + 38502397300900 = 9038739^2 + 6205030^2 .

It is a cyclic number.

It is not a de Polignac number, because 120201200011021 - 2¹ = 120201200011019 is a prime.

Together with 120201200011019, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 120201200010992 and 120201200011010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120201200011027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60100600005510 + 60100600005511.

It is an arithmetic number, because the mean of its divisors is an integer number (60100600005511).

Almost surely, 2^{120201200011021} is an apocalyptic number.

It is an amenable number.

120201200011021 is a deficient number, since it is larger than the sum of its proper divisors (1).

120201200011021 is an equidigital number, since it uses as much as digits as its factorization.

120201200011021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120201200011021 its reverse (120110002102021), we get a palindrome (240311202113042).

The spelling of 120201200011021 in words is "one hundred twenty trillion, two hundred one billion, two hundred million, eleven thousand, twenty-one".