102202011111 has 4 divisors (see below), whose sum is σ = 136269348152. Its totient is φ = 68134674072.

The previous prime is 102202011103. The next prime is 102202011167. The reversal of 102202011111 is 111110202201.

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

It is not a de Polignac number, because 102202011111 - 2³ = 102202011103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102207011111) 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, 17033668516 + ... + 17033668521.

It is an arithmetic number, because the mean of its divisors is an integer number (34067337038).

Almost surely, 2^102202011111 is an apocalyptic number.

102202011111 is a deficient number, since it is larger than the sum of its proper divisors (34067337041).

102202011111 is an equidigital number, since it uses as much as digits as its factorization.

102202011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34067337040.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 102202011111 its reverse (111110202201), we get a palindrome (213312213312).

The spelling of 102202011111 in words is "one hundred two billion, two hundred two million, eleven thousand, one hundred eleven".