102021202111 has 8 divisors (see below), whose sum is σ = 108034964784. Its totient is φ = 96008830080.

The previous prime is 102021202093. The next prime is 102021202121. The reversal of 102021202111 is 111202120201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102021202111 - 2⁷ = 102021201983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102021202091 and 102021202100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102021202121) 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 7 ways as a sum of consecutive naturals, for example, 194685 + ... + 491878.

It is an arithmetic number, because the mean of its divisors is an integer number (13504370598).

Almost surely, 2^102021202111 is an apocalyptic number.

102021202111 is a deficient number, since it is larger than the sum of its proper divisors (6013762673).

102021202111 is an equidigital number, since it uses as much as digits as its factorization.

102021202111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695321.

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

Adding to 102021202111 its reverse (111202120201), we get a palindrome (213223322312).

The spelling of 102021202111 in words is "one hundred two billion, twenty-one million, two hundred two thousand, one hundred eleven".