2199229 has 2 divisors, whose sum is σ = 2199230. Its totient is φ = 2199228.

The previous prime is 2199221. The next prime is 2199247. The reversal of 2199229 is 9229912.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1750329 + 448900 = 1323^2 + 670^2 .

It is a cyclic number.

It is not a de Polignac number, because 2199229 - 2³ = 2199221 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2199194 and 2199203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2199221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1099614 + 1099615.

It is an arithmetic number, because the mean of its divisors is an integer number (1099615).

2^2199229 is an apocalyptic number.

It is an amenable number.

2199229 is a deficient number, since it is larger than the sum of its proper divisors (1).

2199229 is an equidigital number, since it uses as much as digits as its factorization.

2199229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 34.

The square root of 2199229 is about 1482.9797705970. The cubic root of 2199229 is about 130.0439496371.

The spelling of 2199229 in words is "two million, one hundred ninety-nine thousand, two hundred twenty-nine".