20210422147 has 2 divisors, whose sum is σ = 20210422148. Its totient is φ = 20210422146.

The previous prime is 20210422129. The next prime is 20210422157. The reversal of 20210422147 is 74122401202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20210422147 - 2⁷ = 20210422019 is a prime.

It is a super-2 number, since 2×20210422147² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20210422157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105211073 + 10105211074.

It is an arithmetic number, because the mean of its divisors is an integer number (10105211074).

Almost surely, 2^20210422147 is an apocalyptic number.

20210422147 is a deficient number, since it is larger than the sum of its proper divisors (1).

20210422147 is an equidigital number, since it uses as much as digits as its factorization.

20210422147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 25.

Adding to 20210422147 its reverse (74122401202), we get a palindrome (94332823349).

The spelling of 20210422147 in words is "twenty billion, two hundred ten million, four hundred twenty-two thousand, one hundred forty-seven".