210102211221211 has 4 divisors (see below), whose sum is σ = 214988309156632. Its totient is φ = 205216113285792.

The previous prime is 210102211221167. The next prime is 210102211221239. The reversal of 210102211221211 is 112122112201012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 210102211221211 - 2¹³ = 210102211213019 is a prime.

It is a super-2 number, since 2×210102211221211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210102211221241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2443048967646 + ... + 2443048967731.

It is an arithmetic number, because the mean of its divisors is an integer number (53747077289158).

Almost surely, 2^{210102211221211} is an apocalyptic number.

210102211221211 is a deficient number, since it is larger than the sum of its proper divisors (4886097935421).

210102211221211 is an equidigital number, since it uses as much as digits as its factorization.

210102211221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4886097935420.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 210102211221211 its reverse (112122112201012), we get a palindrome (322224323422223).

The spelling of 210102211221211 in words is "two hundred ten trillion, one hundred two billion, two hundred eleven million, two hundred twenty-one thousand, two hundred eleven".