220210157 has 2 divisors, whose sum is σ = 220210158. Its totient is φ = 220210156.

The previous prime is 220210141. The next prime is 220210169. The reversal of 220210157 is 751012022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 213481321 + 6728836 = 14611^2 + 2594^2 .

It is a cyclic number.

It is not a de Polignac number, because 220210157 - 2⁴ = 220210141 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220210187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110105078 + 110105079.

It is an arithmetic number, because the mean of its divisors is an integer number (110105079).

Almost surely, 2^220210157 is an apocalyptic number.

It is an amenable number.

220210157 is a deficient number, since it is larger than the sum of its proper divisors (1).

220210157 is an equidigital number, since it uses as much as digits as its factorization.

220210157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 220210157 is about 14839.4796741665. The cubic root of 220210157 is about 603.8732364489.

Adding to 220210157 its reverse (751012022), we get a palindrome (971222179).

The spelling of 220210157 in words is "two hundred twenty million, two hundred ten thousand, one hundred fifty-seven".