120122021 has 2 divisors, whose sum is σ = 120122022. Its totient is φ = 120122020.

The previous prime is 120122003. The next prime is 120122059. The reversal of 120122021 is 120221021.

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., 84897796 + 35224225 = 9214^2 + 5935^2 .

It is an emirp because it is prime and its reverse (120221021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120122021 - 2⁶ = 120121957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120121993 and 120122011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120122081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60061010 + 60061011.

It is an arithmetic number, because the mean of its divisors is an integer number (60061011).

Almost surely, 2^120122021 is an apocalyptic number.

It is an amenable number.

120122021 is a deficient number, since it is larger than the sum of its proper divisors (1).

120122021 is an equidigital number, since it uses as much as digits as its factorization.

120122021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 120122021 is about 10960.0192061876. The cubic root of 120122021 is about 493.4095413782.

Adding to 120122021 its reverse (120221021), we get a palindrome (240343042).

The spelling of 120122021 in words is "one hundred twenty million, one hundred twenty-two thousand, twenty-one".