22501361444143 has 4 divisors (see below), whose sum is σ = 22514436031248. Its totient is φ = 22488286857040.

The previous prime is 22501361444141. The next prime is 22501361444161. The reversal of 22501361444143 is 34144416310522.

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

It is a cyclic number.

It is not a de Polignac number, because 22501361444143 - 2¹ = 22501361444141 is a prime.

It is a super-2 number, since 2×22501361444143² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22501361444096 and 22501361444105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22501361444141) 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, 6537290971 + ... + 6537294412.

It is an arithmetic number, because the mean of its divisors is an integer number (5628609007812).

Almost surely, 2^{22501361444143} is an apocalyptic number.

22501361444143 is a deficient number, since it is larger than the sum of its proper divisors (13074587105).

22501361444143 is a wasteful number, since it uses less digits than its factorization.

22501361444143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13074587104.

The product of its (nonzero) digits is 276480, while the sum is 40.

Adding to 22501361444143 its reverse (34144416310522), we get a palindrome (56645777754665).

The spelling of 22501361444143 in words is "twenty-two trillion, five hundred one billion, three hundred sixty-one million, four hundred forty-four thousand, one hundred forty-three".