22400020201 has 4 divisors (see below), whose sum is σ = 24123098692. Its totient is φ = 20676941712.

The previous prime is 22400020193. The next prime is 22400020243. The reversal of 22400020201 is 10202000422.

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 4722988176 + 17677032025 = 68724^2 + 132955^2 .

It is a cyclic number.

It is not a de Polignac number, because 22400020201 - 2³ = 22400020193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 1723078477 = 22400020201 / (2 + 2 + 4 + 0 + 0 + 0 + 2 + 0 + 2 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22400020001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 861539226 + ... + 861539251.

It is an arithmetic number, because the mean of its divisors is an integer number (6030774673).

Almost surely, 2^22400020201 is an apocalyptic number.

It is an amenable number.

22400020201 is a deficient number, since it is larger than the sum of its proper divisors (1723078491).

22400020201 is a wasteful number, since it uses less digits than its factorization.

22400020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723078490.

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 22400020201 its reverse (10202000422), we get a palindrome (32602020623).

The spelling of 22400020201 in words is "twenty-two billion, four hundred million, twenty thousand, two hundred one".