2112223545 has 12 divisors (see below), whose sum is σ = 3661187556. Its totient is φ = 1126519200.

The previous prime is 2112223513. The next prime is 2112223573. The reversal of 2112223545 is 5453222112.

2112223545 is a `hidden beast` number, since 2 + 112 + 2 + 2 + 3 + 545 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 582787881 + 1529435664 = 24141^2 + 39108^2 .

It is not a de Polignac number, because 2112223545 - 2⁵ = 2112223513 is a prime.

It is a super-2 number, since 2×2112223545² = 8922976608104734050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23469106 + ... + 23469195.

It is an arithmetic number, because the mean of its divisors is an integer number (305098963).

Almost surely, 2^2112223545 is an apocalyptic number.

It is an amenable number.

2112223545 is a deficient number, since it is larger than the sum of its proper divisors (1548964011).

2112223545 is a wasteful number, since it uses less digits than its factorization.

2112223545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46938312 (or 46938309 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 2112223545 is about 45958.9332448002. The cubic root of 2112223545 is about 1283.0589973370.

Adding to 2112223545 its reverse (5453222112), we get a palindrome (7565445657).

The spelling of 2112223545 in words is "two billion, one hundred twelve million, two hundred twenty-three thousand, five hundred forty-five".