22215005515015 has 16 divisors (see below), whose sum is σ = 28253770332480. Its totient is φ = 16710209763840.

The previous prime is 22215005515013. The next prime is 22215005515033. The reversal of 22215005515015 is 51051550051222.

It is not a de Polignac number, because 22215005515015 - 2¹ = 22215005515013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22215005515013) 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 15 ways as a sum of consecutive naturals, for example, 127901955 + ... + 128075524.

It is an arithmetic number, because the mean of its divisors is an integer number (1765860645780).

Almost surely, 2^{22215005515015} is an apocalyptic number.

22215005515015 is a deficient number, since it is larger than the sum of its proper divisors (6038764817465).

22215005515015 is a wasteful number, since it uses less digits than its factorization.

22215005515015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255978522.

The product of its (nonzero) digits is 25000, while the sum is 34.

Adding to 22215005515015 its reverse (51051550051222), we get a palindrome (73266555566237).

The spelling of 22215005515015 in words is "twenty-two trillion, two hundred fifteen billion, five million, five hundred fifteen thousand, fifteen".