22440201223001 has 4 divisors (see below), whose sum is σ = 22467270224100. Its totient is φ = 22413132221904.

The previous prime is 22440201222983. The next prime is 22440201223019. The reversal of 22440201223001 is 10032210204422.

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

It is an interprime number because it is at equal distance from previous prime (22440201222983) and next prime (22440201223019).

It can be written as a sum of positive squares in 2 ways, for example, as 9081176223001 + 13359025000000 = 3013499^2 + 3655000^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22440201223001 is a prime.

It is a super-2 number, since 2×22440201223001² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22440201223201) 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, 13534499306 + ... + 13534500963.

It is an arithmetic number, because the mean of its divisors is an integer number (5616817556025).

Almost surely, 2^{22440201223001} is an apocalyptic number.

It is an amenable number.

22440201223001 is a deficient number, since it is larger than the sum of its proper divisors (27069001099).

22440201223001 is an equidigital number, since it uses as much as digits as its factorization.

22440201223001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27069001098.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 22440201223001 its reverse (10032210204422), we get a palindrome (32472411427423).

The spelling of 22440201223001 in words is "twenty-two trillion, four hundred forty billion, two hundred one million, two hundred twenty-three thousand, one".