215025162220 has 24 divisors (see below), whose sum is σ = 492603099408. Its totient is φ = 78190968000.

The previous prime is 215025162217. The next prime is 215025162229. The reversal of 215025162220 is 22261520512.

It is not an unprimeable number, because it can be changed into a prime (215025162229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 488693331 + ... + 488693770.

It is an arithmetic number, because the mean of its divisors is an integer number (20525129142).

Almost surely, 2^215025162220 is an apocalyptic number.

215025162220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215025162220 is an abundant number, since it is smaller than the sum of its proper divisors (277577937188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215025162220 is a wasteful number, since it uses less digits than its factorization.

215025162220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977387121 (or 977387119 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 215025162220 its reverse (22261520512), we get a palindrome (237286682732).

The spelling of 215025162220 in words is "two hundred fifteen billion, twenty-five million, one hundred sixty-two thousand, two hundred twenty".