102010221211 has 4 divisors (see below), whose sum is σ = 102012024024. Its totient is φ = 102008418400.

The previous prime is 102010221197. The next prime is 102010221221. The reversal of 102010221211 is 112122010201.

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 102010221211 - 2⁹ = 102010220699 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102010221191 and 102010221200.

It is not an unprimeable number, because it can be changed into a prime (102010221221) 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 in 3 ways as a sum of consecutive naturals, for example, 813685 + ... + 930646.

It is an arithmetic number, because the mean of its divisors is an integer number (25503006006).

Almost surely, 2^102010221211 is an apocalyptic number.

102010221211 is a deficient number, since it is larger than the sum of its proper divisors (1802813).

102010221211 is an equidigital number, since it uses as much as digits as its factorization.

102010221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802812.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102010221211 its reverse (112122010201), we get a palindrome (214132231412).

The spelling of 102010221211 in words is "one hundred two billion, ten million, two hundred twenty-one thousand, two hundred eleven".