102221002111 has 4 divisors (see below), whose sum is σ = 105518453824. Its totient is φ = 98923550400.

The previous prime is 102221002061. The next prime is 102221002123. The reversal of 102221002111 is 111200122201.

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 102221002111 - 2⁷ = 102221001983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102221002091 and 102221002100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102221002171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1648725810 + ... + 1648725871.

It is an arithmetic number, because the mean of its divisors is an integer number (26379613456).

Almost surely, 2^102221002111 is an apocalyptic number.

102221002111 is a deficient number, since it is larger than the sum of its proper divisors (3297451713).

102221002111 is an equidigital number, since it uses as much as digits as its factorization.

102221002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3297451712.

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

Adding to 102221002111 its reverse (111200122201), we get a palindrome (213421124312).

The spelling of 102221002111 in words is "one hundred two billion, two hundred twenty-one million, two thousand, one hundred eleven".