2022155 has 4 divisors (see below), whose sum is σ = 2426592. Its totient is φ = 1617720.

The previous prime is 2022149. The next prime is 2022157. The reversal of 2022155 is 5512202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5512202 = 2 ⋅2756101.

It is a de Polignac number, because none of the positive numbers 2^k-2022155 is a prime.

It is a super-2 number, since 2×2022155² = 8178221688050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2022157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202211 + ... + 202220.

It is an arithmetic number, because the mean of its divisors is an integer number (606648).

2^2022155 is an apocalyptic number.

2022155 is a deficient number, since it is larger than the sum of its proper divisors (404437).

2022155 is an equidigital number, since it uses as much as digits as its factorization.

2022155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404436.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 2022155 is about 1422.0249646191. The cubic root of 2022155 is about 126.4556234852.

Adding to 2022155 its reverse (5512202), we get a palindrome (7534357).

The spelling of 2022155 in words is "two million, twenty-two thousand, one hundred fifty-five".