120112201021 has 2 divisors, whose sum is σ = 120112201022. Its totient is φ = 120112201020.

The previous prime is 120112201019. The next prime is 120112201049. The reversal of 120112201021 is 120102211021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120107299225 + 4901796 = 346565^2 + 2214^2 .

It is a cyclic number.

It is not a de Polignac number, because 120112201021 - 2¹ = 120112201019 is a prime.

It is a super-2 number, since 2×120112201021² (a number of 23 digits) contains 22 as substring.

Together with 120112201019, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 120112200992 and 120112201010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120112201621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60056100510 + 60056100511.

It is an arithmetic number, because the mean of its divisors is an integer number (60056100511).

Almost surely, 2^120112201021 is an apocalyptic number.

It is an amenable number.

120112201021 is a deficient number, since it is larger than the sum of its proper divisors (1).

120112201021 is an equidigital number, since it uses as much as digits as its factorization.

120112201021 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 120112201021 its reverse (120102211021), we get a palindrome (240214412042).

The spelling of 120112201021 in words is "one hundred twenty billion, one hundred twelve million, two hundred one thousand, twenty-one".