212291970211 has 2 divisors, whose sum is σ = 212291970212. Its totient is φ = 212291970210.

The previous prime is 212291970199. The next prime is 212291970227. The reversal of 212291970211 is 112079192212.

212291970211 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 212291970211 - 2⁷ = 212291970083 is a prime.

It is a super-2 number, since 2×212291970211² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212291970251) 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, 106145985105 + 106145985106.

It is an arithmetic number, because the mean of its divisors is an integer number (106145985106).

Almost surely, 2^212291970211 is an apocalyptic number.

212291970211 is a deficient number, since it is larger than the sum of its proper divisors (1).

212291970211 is an equidigital number, since it uses as much as digits as its factorization.

212291970211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 37.

The spelling of 212291970211 in words is "two hundred twelve billion, two hundred ninety-one million, nine hundred seventy thousand, two hundred eleven".