102221112101 has 4 divisors (see below), whose sum is σ = 102245873100. Its totient is φ = 102196351104.

The previous prime is 102221112079. The next prime is 102221112107. The reversal of 102221112101 is 101211122201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101211122201 = 7 ⋅14458731743.

It can be written as a sum of positive squares in 2 ways, for example, as 58956696100 + 43264416001 = 242810^2 + 208001^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102221112101 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 (102221112107) 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, 12374306 + ... + 12382563.

It is an arithmetic number, because the mean of its divisors is an integer number (25561468275).

Almost surely, 2^102221112101 is an apocalyptic number.

It is an amenable number.

102221112101 is a deficient number, since it is larger than the sum of its proper divisors (24760999).

102221112101 is an equidigital number, since it uses as much as digits as its factorization.

102221112101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24760998.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102221112101 its reverse (101211122201), we get a palindrome (203432234302).

The spelling of 102221112101 in words is "one hundred two billion, two hundred twenty-one million, one hundred twelve thousand, one hundred one".