212224100307 has 4 divisors (see below), whose sum is σ = 282965467080. Its totient is φ = 141482733536.

The previous prime is 212224100237. The next prime is 212224100359. The reversal of 212224100307 is 703001422212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212224100307 - 2²³ = 212215711699 is a prime.

It is a super-2 number, since 2×212224100307² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212224107307) 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, 35370683382 + ... + 35370683387.

It is an arithmetic number, because the mean of its divisors is an integer number (70741366770).

Almost surely, 2^212224100307 is an apocalyptic number.

212224100307 is a deficient number, since it is larger than the sum of its proper divisors (70741366773).

212224100307 is an equidigital number, since it uses as much as digits as its factorization.

212224100307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70741366772.

The product of its (nonzero) digits is 1344, while the sum is 24.

Adding to 212224100307 its reverse (703001422212), we get a palindrome (915225522519).

The spelling of 212224100307 in words is "two hundred twelve billion, two hundred twenty-four million, one hundred thousand, three hundred seven".