220472071 has 2 divisors, whose sum is σ = 220472072. Its totient is φ = 220472070.

The previous prime is 220472069. The next prime is 220472183. The reversal of 220472071 is 170274022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220472071 - 2¹ = 220472069 is a prime.

Together with 220472069, it forms a pair of twin primes.

It is equal to p_12147028 and since 220472071 and 12147028 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220472041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110236035 + 110236036.

It is an arithmetic number, because the mean of its divisors is an integer number (110236036).

Almost surely, 2^220472071 is an apocalyptic number.

220472071 is a deficient number, since it is larger than the sum of its proper divisors (1).

220472071 is an equidigital number, since it uses as much as digits as its factorization.

220472071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 220472071 is about 14848.3019567895. The cubic root of 220472071 is about 604.1125535828.

The spelling of 220472071 in words is "two hundred twenty million, four hundred seventy-two thousand, seventy-one".