2210155 has 4 divisors (see below), whose sum is σ = 2652192. Its totient is φ = 1768120.

The previous prime is 2210147. The next prime is 2210161. The reversal of 2210155 is 5510122.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2210155 - 2³ = 2210147 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221011 + ... + 221020.

It is an arithmetic number, because the mean of its divisors is an integer number (663048).

2^2210155 is an apocalyptic number.

2210155 is a deficient number, since it is larger than the sum of its proper divisors (442037).

2210155 is an equidigital number, since it uses as much as digits as its factorization.

2210155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442036.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 2210155 is about 1486.6590059593. The cubic root of 2210155 is about 130.2589512995.

Adding to 2210155 its reverse (5510122), we get a palindrome (7720277).

The spelling of 2210155 in words is "two million, two hundred ten thousand, one hundred fifty-five".