872042222504101 has 4 divisors (see below), whose sum is σ = 951318788186304. Its totient is φ = 792765656821900.

The previous prime is 872042222504077. The next prime is 872042222504113. The reversal of 872042222504101 is 101405222240278.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 872042222504101 - 2⁷ = 872042222503973 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 (872042222504191) 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, 39638282841085 + ... + 39638282841106.

It is an arithmetic number, because the mean of its divisors is an integer number (237829697046576).

Almost surely, 2^{872042222504101} is an apocalyptic number.

It is an amenable number.

872042222504101 is a deficient number, since it is larger than the sum of its proper divisors (79276565682203).

872042222504101 is a wasteful number, since it uses less digits than its factorization.

872042222504101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79276565682202.

The product of its (nonzero) digits is 143360, while the sum is 40.

Adding to 872042222504101 its reverse (101405222240278), we get a palindrome (973447444744379).

The spelling of 872042222504101 in words is "eight hundred seventy-two trillion, forty-two billion, two hundred twenty-two million, five hundred four thousand, one hundred one".