22228642747 has 2 divisors, whose sum is σ = 22228642748. Its totient is φ = 22228642746.

The previous prime is 22228642703. The next prime is 22228642771. The reversal of 22228642747 is 74724682222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22228642747 is a prime.

It is a super-2 number, since 2×22228642747² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22228642697 and 22228642706.

It is not a weakly prime, because it can be changed into another prime (22228642547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11114321373 + 11114321374.

It is an arithmetic number, because the mean of its divisors is an integer number (11114321374).

Almost surely, 2^22228642747 is an apocalyptic number.

22228642747 is a deficient number, since it is larger than the sum of its proper divisors (1).

22228642747 is an equidigital number, since it uses as much as digits as its factorization.

22228642747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1204224, while the sum is 46.

The spelling of 22228642747 in words is "twenty-two billion, two hundred twenty-eight million, six hundred forty-two thousand, seven hundred forty-seven".