22221200444145 has 32 divisors (see below), whose sum is σ = 35626774803840. Its totient is φ = 11827026140160.

The previous prime is 22221200444141. The next prime is 22221200444167. The reversal of 22221200444145 is 54144400212222.

It is not a de Polignac number, because 22221200444145 - 2² = 22221200444141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22221200444141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95298150 + ... + 95531040.

It is an arithmetic number, because the mean of its divisors is an integer number (1113336712620).

Almost surely, 2^{22221200444145} is an apocalyptic number.

It is an amenable number.

22221200444145 is a deficient number, since it is larger than the sum of its proper divisors (13405574359695).

22221200444145 is a wasteful number, since it uses less digits than its factorization.

22221200444145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245905.

The product of its (nonzero) digits is 40960, while the sum is 33.

Adding to 22221200444145 its reverse (54144400212222), we get a palindrome (76365600656367).

The spelling of 22221200444145 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred million, four hundred forty-four thousand, one hundred forty-five".