102201111011 has 4 divisors (see below), whose sum is σ = 102346905024. Its totient is φ = 102055317000.

The previous prime is 102201110983. The next prime is 102201111059. The reversal of 102201111011 is 110111102201.

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 102201111011 - 2³⁴ = 85021241827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102201110983 and 102201111001.

It is not an unprimeable number, because it can be changed into a prime (102201101011) 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, 72895955 + ... + 72897356.

It is an arithmetic number, because the mean of its divisors is an integer number (25586726256).

Almost surely, 2^102201111011 is an apocalyptic number.

102201111011 is a deficient number, since it is larger than the sum of its proper divisors (145794013).

102201111011 is an equidigital number, since it uses as much as digits as its factorization.

102201111011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145794012.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 102201111011 its reverse (110111102201), we get a palindrome (212312213212).

The spelling of 102201111011 in words is "one hundred two billion, two hundred one million, one hundred eleven thousand, eleven".