2213155555 has 48 divisors (see below), whose sum is σ = 2998119744. Its totient is φ = 1566190080.

The previous prime is 2213155517. The next prime is 2213155559. The reversal of 2213155555 is 5555513122.

It is not a de Polignac number, because 2213155555 - 2²⁷ = 2078937827 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 2213155555.

It is not an unprimeable number, because it can be changed into a prime (2213155559) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2219317 + ... + 2220313.

It is an arithmetic number, because the mean of its divisors is an integer number (62460828).

Almost surely, 2^2213155555 is an apocalyptic number.

2213155555 is a deficient number, since it is larger than the sum of its proper divisors (784964189).

2213155555 is a wasteful number, since it uses less digits than its factorization.

2213155555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136 (or 1123 counting only the distinct ones).

The product of its digits is 37500, while the sum is 34.

The square root of 2213155555 is about 47044.1872604895. The cubic root of 2213155555 is about 1303.1787211510.

Adding to 2213155555 its reverse (5555513122), we get a palindrome (7768668677).

The spelling of 2213155555 in words is "two billion, two hundred thirteen million, one hundred fifty-five thousand, five hundred fifty-five".