220411551215 has 32 divisors (see below), whose sum is σ = 270141108480. Its totient is φ = 172601155584.

The previous prime is 220411551211. The next prime is 220411551223. The reversal of 220411551215 is 512155114022.

It is a cyclic number.

It is not a de Polignac number, because 220411551215 - 2² = 220411551211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220411551211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38137196 + ... + 38142974.

It is an arithmetic number, because the mean of its divisors is an integer number (8441909640).

Almost surely, 2^220411551215 is an apocalyptic number.

220411551215 is a deficient number, since it is larger than the sum of its proper divisors (49729557265).

220411551215 is a wasteful number, since it uses less digits than its factorization.

220411551215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6551.

The product of its (nonzero) digits is 4000, while the sum is 29.

Adding to 220411551215 its reverse (512155114022), we get a palindrome (732566665237).

The spelling of 220411551215 in words is "two hundred twenty billion, four hundred eleven million, five hundred fifty-one thousand, two hundred fifteen".