212301020291 has 2 divisors, whose sum is σ = 212301020292. Its totient is φ = 212301020290.

The previous prime is 212301020263. The next prime is 212301020299. The reversal of 212301020291 is 192020103212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212301020291 - 2²² = 212296825987 is a prime.

It is not a weakly prime, because it can be changed into another prime (212301020299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106150510145 + 106150510146.

It is an arithmetic number, because the mean of its divisors is an integer number (106150510146).

Almost surely, 2^212301020291 is an apocalyptic number.

212301020291 is a deficient number, since it is larger than the sum of its proper divisors (1).

212301020291 is an equidigital number, since it uses as much as digits as its factorization.

212301020291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 212301020291 in words is "two hundred twelve billion, three hundred one million, twenty thousand, two hundred ninety-one".