2212145613 has 8 divisors (see below), whose sum is σ = 3277252800. Its totient is φ = 1474763724.

The previous prime is 2212145609. The next prime is 2212145657. The reversal of 2212145613 is 3165412122.

2212145613 is a `hidden beast` number, since 2 + 2 + 1 + 2 + 1 + 45 + 613 = 666.

It is not a de Polignac number, because 2212145613 - 2² = 2212145609 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 81931319 = 2212145613 / (2 + 2 + 1 + 2 + 1 + 4 + 5 + 6 + 1 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212143613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40965633 + ... + 40965686.

It is an arithmetic number, because the mean of its divisors is an integer number (409656600).

Almost surely, 2^2212145613 is an apocalyptic number.

It is an amenable number.

2212145613 is a deficient number, since it is larger than the sum of its proper divisors (1065107187).

2212145613 is an equidigital number, since it uses as much as digits as its factorization.

2212145613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81931328 (or 81931322 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 2212145613 is about 47033.4520633985. The cubic root of 2212145613 is about 1302.9804619773.

Adding to 2212145613 its reverse (3165412122), we get a palindrome (5377557735).

The spelling of 2212145613 in words is "two billion, two hundred twelve million, one hundred forty-five thousand, six hundred thirteen".