220122143 has 2 divisors, whose sum is σ = 220122144. Its totient is φ = 220122142.

The previous prime is 220122131. The next prime is 220122157. The reversal of 220122143 is 341221022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220122143 - 2¹² = 220118047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220122043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110061071 + 110061072.

It is an arithmetic number, because the mean of its divisors is an integer number (110061072).

Almost surely, 2^220122143 is an apocalyptic number.

220122143 is a deficient number, since it is larger than the sum of its proper divisors (1).

220122143 is an equidigital number, since it uses as much as digits as its factorization.

220122143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 220122143 is about 14836.5138425440. The cubic root of 220122143 is about 603.7927733400.

Adding to 220122143 its reverse (341221022), we get a palindrome (561343165).

The spelling of 220122143 in words is "two hundred twenty million, one hundred twenty-two thousand, one hundred forty-three".