2211265555 has 8 divisors (see below), whose sum is σ = 2697019344. Its totient is φ = 1740012000.

The previous prime is 2211265501. The next prime is 2211265559. The reversal of 2211265555 is 5555621122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2211265555 - 2¹⁷ = 2211134483 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2211265555.

It is not an unprimeable number, because it can be changed into a prime (2211265559) 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, 3624721 + ... + 3625330.

It is an arithmetic number, because the mean of its divisors is an integer number (337127418).

Almost surely, 2^2211265555 is an apocalyptic number.

2211265555 is a deficient number, since it is larger than the sum of its proper divisors (485753789).

2211265555 is an equidigital number, since it uses as much as digits as its factorization.

2211265555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7250117.

The product of its digits is 30000, while the sum is 34.

The square root of 2211265555 is about 47024.0954724277. The cubic root of 2211265555 is about 1302.8076507980.

Adding to 2211265555 its reverse (5555621122), we get a palindrome (7766886677).

The spelling of 2211265555 in words is "two billion, two hundred eleven million, two hundred sixty-five thousand, five hundred fifty-five".