100000022201 has 4 divisors (see below), whose sum is σ = 100020531492. Its totient is φ = 99979512912.

The previous prime is 100000022191. The next prime is 100000022231. The reversal of 100000022201 is 102220000001.

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

It can be written as a sum of positive squares in 2 ways, for example, as 70079325625 + 29920696576 = 264725^2 + 172976^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100000022201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100000022231) 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, 10247330 + ... + 10257083.

It is an arithmetic number, because the mean of its divisors is an integer number (25005132873).

Almost surely, 2^100000022201 is an apocalyptic number.

It is an amenable number.

100000022201 is a deficient number, since it is larger than the sum of its proper divisors (20509291).

100000022201 is an equidigital number, since it uses as much as digits as its factorization.

100000022201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20509290.

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

Adding to 100000022201 its reverse (102220000001), we get a palindrome (202220022202).

It can be divided in two parts, 1000000 and 22201, that multiplied together give a square (22201000000 = 149000²).

The spelling of 100000022201 in words is "one hundred billion, twenty-two thousand, two hundred one".