120120227021 has 2 divisors, whose sum is σ = 120120227022. Its totient is φ = 120120227020.

The previous prime is 120120227011. The next prime is 120120227063. The reversal of 120120227021 is 120722021021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117049515625 + 3070711396 = 342125^2 + 55414^2 .

It is a cyclic number.

It is not a de Polignac number, because 120120227021 - 2²² = 120116032717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120120226984 and 120120227002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120120227011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60060113510 + 60060113511.

It is an arithmetic number, because the mean of its divisors is an integer number (60060113511).

Almost surely, 2^120120227021 is an apocalyptic number.

It is an amenable number.

120120227021 is a deficient number, since it is larger than the sum of its proper divisors (1).

120120227021 is an equidigital number, since it uses as much as digits as its factorization.

120120227021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 120120227021 its reverse (120722021021), we get a palindrome (240842248042).

The spelling of 120120227021 in words is "one hundred twenty billion, one hundred twenty million, two hundred twenty-seven thousand, twenty-one".