22110101 has 6 divisors (see below), whose sum is σ = 23941890. Its totient is φ = 20409168.

The previous prime is 22110089. The next prime is 22110103. The reversal of 22110101 is 10101122.

It can be written as a sum of positive squares in 3 ways, for example, as 940900 + 21169201 = 970^2 + 4601^2 .

It is not a de Polignac number, because 22110101 - 2¹⁰ = 22109077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22110103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65246 + ... + 65583.

It is an arithmetic number, because the mean of its divisors is an integer number (3990315).

Almost surely, 2^22110101 is an apocalyptic number.

It is an amenable number.

22110101 is a deficient number, since it is larger than the sum of its proper divisors (1831789).

22110101 is a wasteful number, since it uses less digits than its factorization.

22110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130855 (or 130842 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 22110101 is about 4702.1379180113. The cubic root of 22110101 is about 280.6705908042.

Adding to 22110101 its reverse (10101122), we get a palindrome (32211223).

The spelling of 22110101 in words is "twenty-two million, one hundred ten thousand, one hundred one".