20221232147 has 2 divisors, whose sum is σ = 20221232148. Its totient is φ = 20221232146.

The previous prime is 20221232117. The next prime is 20221232179. The reversal of 20221232147 is 74123212202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20221232147 - 2²⁴ = 20204454931 is a prime.

It is not a weakly prime, because it can be changed into another prime (20221232117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110616073 + 10110616074.

It is an arithmetic number, because the mean of its divisors is an integer number (10110616074).

Almost surely, 2^20221232147 is an apocalyptic number.

20221232147 is a deficient number, since it is larger than the sum of its proper divisors (1).

20221232147 is an equidigital number, since it uses as much as digits as its factorization.

20221232147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 26.

Adding to 20221232147 its reverse (74123212202), we get a palindrome (94344444349).

The spelling of 20221232147 in words is "twenty billion, two hundred twenty-one million, two hundred thirty-two thousand, one hundred forty-seven".