212021113351 has 2 divisors, whose sum is σ = 212021113352. Its totient is φ = 212021113350.

The previous prime is 212021113321. The next prime is 212021113391. The reversal of 212021113351 is 153311120212.

212021113351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212021113351 - 2⁷ = 212021113223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212021113301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010556675 + 106010556676.

It is an arithmetic number, because the mean of its divisors is an integer number (106010556676).

Almost surely, 2^212021113351 is an apocalyptic number.

212021113351 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021113351 is an equidigital number, since it uses as much as digits as its factorization.

212021113351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 212021113351 its reverse (153311120212), we get a palindrome (365332233563).

The spelling of 212021113351 in words is "two hundred twelve billion, twenty-one million, one hundred thirteen thousand, three hundred fifty-one".