1100022101 has 4 divisors (see below), whose sum is σ = 1100331852. Its totient is φ = 1099712352.

The previous prime is 1100022067. The next prime is 1100022103. The reversal of 1100022101 is 1012200011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1012200011 = 29017 ⋅34883.

It can be written as a sum of positive squares in 2 ways, for example, as 251698225 + 848323876 = 15865^2 + 29126^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100022101 - 2⁶ = 1100022037 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 (1100022103) 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, 149486 + ... + 156671.

It is an arithmetic number, because the mean of its divisors is an integer number (275082963).

Almost surely, 2^1100022101 is an apocalyptic number.

It is an amenable number.

1100022101 is a deficient number, since it is larger than the sum of its proper divisors (309751).

1100022101 is an equidigital number, since it uses as much as digits as its factorization.

1100022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309750.

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

The square root of 1100022101 is about 33166.5810869918. The cubic root of 1100022101 is about 1032.2870288715.

Adding to 1100022101 its reverse (1012200011), we get a palindrome (2112222112).

The spelling of 1100022101 in words is "one billion, one hundred million, twenty-two thousand, one hundred one".