2212145633 has 4 divisors (see below), whose sum is σ = 2245162800. Its totient is φ = 2179128468.

The previous prime is 2212145609. The next prime is 2212145657. The reversal of 2212145633 is 3365412122.

It is a happy number.

2212145633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2212145609) and next prime (2212145657).

It is a cyclic number.

It is not a de Polignac number, because 2212145633 - 2¹² = 2212141537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2212145596 and 2212145605.

It is not an unprimeable number, because it can be changed into a prime (2212144633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16508483 + ... + 16508616.

It is an arithmetic number, because the mean of its divisors is an integer number (561290700).

Almost surely, 2^2212145633 is an apocalyptic number.

It is an amenable number.

2212145633 is a deficient number, since it is larger than the sum of its proper divisors (33017167).

2212145633 is an equidigital number, since it uses as much as digits as its factorization.

2212145633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33017166.

The product of its digits is 8640, while the sum is 29.

The square root of 2212145633 is about 47033.4522760131. The cubic root of 2212145633 is about 1302.9804659041.

Adding to 2212145633 its reverse (3365412122), we get a palindrome (5577557755).

The spelling of 2212145633 in words is "two billion, two hundred twelve million, one hundred forty-five thousand, six hundred thirty-three".