220878227 has 4 divisors (see below), whose sum is σ = 220973376. Its totient is φ = 220783080.

The previous prime is 220878209. The next prime is 220878277. The reversal of 220878227 is 722878022.

220878227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 722878022 = 2 ⋅361439011.

It is a cyclic number.

It is not a de Polignac number, because 220878227 - 2¹² = 220874131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220878277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44003 + ... + 48764.

It is an arithmetic number, because the mean of its divisors is an integer number (55243344).

Almost surely, 2^220878227 is an apocalyptic number.

220878227 is a deficient number, since it is larger than the sum of its proper divisors (95149).

220878227 is an equidigital number, since it uses as much as digits as its factorization.

220878227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95148.

The product of its (nonzero) digits is 50176, while the sum is 38.

The square root of 220878227 is about 14861.9725137682. The cubic root of 220878227 is about 604.4832935448.

The spelling of 220878227 in words is "two hundred twenty million, eight hundred seventy-eight thousand, two hundred twenty-seven".