205541222 has 16 divisors (see below), whose sum is σ = 321242112. Its totient is φ = 98522760.

The previous prime is 205541201. The next prime is 205541243. The reversal of 205541222 is 222145502.

It is an interprime number because it is at equal distance from previous prime (205541201) and next prime (205541243).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8858 + ... + 22125.

It is an arithmetic number, because the mean of its divisors is an integer number (20077632).

Almost surely, 2^205541222 is an apocalyptic number.

205541222 is a deficient number, since it is larger than the sum of its proper divisors (115700890).

205541222 is a wasteful number, since it uses less digits than its factorization.

205541222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31123.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 205541222 is about 14336.7088970935. The cubic root of 205541222 is about 590.1552995380.

Adding to 205541222 its reverse (222145502), we get a palindrome (427686724).

The spelling of 205541222 in words is "two hundred five million, five hundred forty-one thousand, two hundred twenty-two".