220415135245321 has 16 divisors (see below), whose sum is σ = 234186353530560. Its totient is φ = 206860993274880.

The previous prime is 220415135245289. The next prime is 220415135245399. The reversal of 220415135245321 is 123542531514022.

220415135245321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 220415135245321 - 2⁵ = 220415135245289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220415135245421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269902005 + ... + 270717421.

It is an arithmetic number, because the mean of its divisors is an integer number (14636647095660).

Almost surely, 2^{220415135245321} is an apocalyptic number.

It is an amenable number.

220415135245321 is a deficient number, since it is larger than the sum of its proper divisors (13771218285239).

220415135245321 is a wasteful number, since it uses less digits than its factorization.

220415135245321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948504.

The product of its (nonzero) digits is 288000, while the sum is 40.

Adding to 220415135245321 its reverse (123542531514022), we get a palindrome (343957666759343).

The spelling of 220415135245321 in words is "two hundred twenty trillion, four hundred fifteen billion, one hundred thirty-five million, two hundred forty-five thousand, three hundred twenty-one".