229200421 has 2 divisors, whose sum is σ = 229200422. Its totient is φ = 229200420.

The previous prime is 229200383. The next prime is 229200437. The reversal of 229200421 is 124002922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134235396 + 94965025 = 11586^2 + 9745^2 .

It is a cyclic number.

It is not a de Polignac number, because 229200421 - 2⁹ = 229199909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 229200392 and 229200401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229200121) 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, 114600210 + 114600211.

It is an arithmetic number, because the mean of its divisors is an integer number (114600211).

Almost surely, 2^229200421 is an apocalyptic number.

It is an amenable number.

229200421 is a deficient number, since it is larger than the sum of its proper divisors (1).

229200421 is an equidigital number, since it uses as much as digits as its factorization.

229200421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 229200421 is about 15139.3665983752. The cubic root of 229200421 is about 611.9817488185.

The spelling of 229200421 in words is "two hundred twenty-nine million, two hundred thousand, four hundred twenty-one".