120212021641 has 2 divisors, whose sum is σ = 120212021642. Its totient is φ = 120212021640.

The previous prime is 120212021639. The next prime is 120212021659. The reversal of 120212021641 is 146120212021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75139033225 + 45072988416 = 274115^2 + 212304^2 .

It is a cyclic number.

It is not a de Polignac number, because 120212021641 - 2¹ = 120212021639 is a prime.

Together with 120212021639, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (120212021141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60106010820 + 60106010821.

It is an arithmetic number, because the mean of its divisors is an integer number (60106010821).

Almost surely, 2^120212021641 is an apocalyptic number.

It is an amenable number.

120212021641 is a deficient number, since it is larger than the sum of its proper divisors (1).

120212021641 is an equidigital number, since it uses as much as digits as its factorization.

120212021641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 120212021641 its reverse (146120212021), we get a palindrome (266332233662).

The spelling of 120212021641 in words is "one hundred twenty billion, two hundred twelve million, twenty-one thousand, six hundred forty-one".