2102226155 has 4 divisors (see below), whose sum is σ = 2522671392. Its totient is φ = 1681780920.

The previous prime is 2102226107. The next prime is 2102226179. The reversal of 2102226155 is 5516222012.

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

It is not a de Polignac number, because 2102226155 - 2¹⁰ = 2102225131 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, 210222611 + ... + 210222620.

It is an arithmetic number, because the mean of its divisors is an integer number (630667848).

Almost surely, 2^2102226155 is an apocalyptic number.

2102226155 is a deficient number, since it is larger than the sum of its proper divisors (420445237).

2102226155 is an equidigital number, since it uses as much as digits as its factorization.

2102226155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420445236.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 2102226155 is about 45850.0398582160. The cubic root of 2102226155 is about 1281.0315079974.

Adding to 2102226155 its reverse (5516222012), we get a palindrome (7618448167).

The spelling of 2102226155 in words is "two billion, one hundred two million, two hundred twenty-six thousand, one hundred fifty-five".