211010220129 has 4 divisors (see below), whose sum is σ = 281346960176. Its totient is φ = 140673480084.

The previous prime is 211010220089. The next prime is 211010220143. The reversal of 211010220129 is 921022010112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 211010220129 - 2⁹ = 211010219617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211010220829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35168370019 + ... + 35168370024.

It is an arithmetic number, because the mean of its divisors is an integer number (70336740044).

Almost surely, 2^211010220129 is an apocalyptic number.

It is an amenable number.

211010220129 is a deficient number, since it is larger than the sum of its proper divisors (70336740047).

211010220129 is an equidigital number, since it uses as much as digits as its factorization.

211010220129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70336740046.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 211010220129 in words is "two hundred eleven billion, ten million, two hundred twenty thousand, one hundred twenty-nine".