22155221501041 has 4 divisors (see below), whose sum is σ = 22156041150784. Its totient is φ = 22154401851300.

The previous prime is 22155221501027. The next prime is 22155221501053. The reversal of 22155221501041 is 14010512255122.

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 22155221501041 - 2⁵ = 22155221501009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22155221500994 and 22155221501012.

It is not an unprimeable number, because it can be changed into a prime (22155221501011) 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, 409784325 + ... + 409838386.

It is an arithmetic number, because the mean of its divisors is an integer number (5539010287696).

Almost surely, 2^{22155221501041} is an apocalyptic number.

It is an amenable number.

22155221501041 is a deficient number, since it is larger than the sum of its proper divisors (819649743).

22155221501041 is an equidigital number, since it uses as much as digits as its factorization.

22155221501041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819649742.

The product of its (nonzero) digits is 8000, while the sum is 31.

Adding to 22155221501041 its reverse (14010512255122), we get a palindrome (36165733756163).

The spelling of 22155221501041 in words is "twenty-two trillion, one hundred fifty-five billion, two hundred twenty-one million, five hundred one thousand, forty-one".