220220101215 has 32 divisors (see below), whose sum is σ = 394585128960. Its totient is φ = 116525902752.

The previous prime is 220220101181. The next prime is 220220101219. The reversal of 220220101215 is 512101022022.

220220101215 is a `hidden beast` number, since 220 + 220 + 10 + 1 + 215 = 666.

It is not a de Polignac number, because 220220101215 - 2⁹ = 220220100703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220220101219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6405139 + ... + 6439428.

It is an arithmetic number, because the mean of its divisors is an integer number (12330785280).

Almost surely, 2^220220101215 is an apocalyptic number.

220220101215 is a deficient number, since it is larger than the sum of its proper divisors (174365027745).

220220101215 is a wasteful number, since it uses less digits than its factorization.

220220101215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12844708 (or 12844702 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

Adding to 220220101215 its reverse (512101022022), we get a palindrome (732321123237).

The spelling of 220220101215 in words is "two hundred twenty billion, two hundred twenty million, one hundred one thousand, two hundred fifteen".