120210212021 has 2 divisors, whose sum is σ = 120210212022. Its totient is φ = 120210212020.

The previous prime is 120210211999. The next prime is 120210212033. The reversal of 120210212021 is 120212012021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102947931025 + 17262280996 = 320855^2 + 131386^2 .

It is a cyclic number.

It is not a de Polignac number, because 120210212021 - 2²² = 120206017717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120210211987 and 120210212005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120210212051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60105106010 + 60105106011.

It is an arithmetic number, because the mean of its divisors is an integer number (60105106011).

Almost surely, 2^120210212021 is an apocalyptic number.

It is an amenable number.

120210212021 is a deficient number, since it is larger than the sum of its proper divisors (1).

120210212021 is an equidigital number, since it uses as much as digits as its factorization.

120210212021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 120210212021 its reverse (120212012021), we get a palindrome (240422224042).

The spelling of 120210212021 in words is "one hundred twenty billion, two hundred ten million, two hundred twelve thousand, twenty-one".