206402222 has 32 divisors (see below), whose sum is σ = 346248000. Its totient is φ = 91623168.

The previous prime is 206402201. The next prime is 206402249. The reversal of 206402222 is 222204602.

It is a junction number, because it is equal to n+sod(n) for n = 206402194 and 206402203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 344279 + ... + 344877.

It is an arithmetic number, because the mean of its divisors is an integer number (10820250).

Almost surely, 2^206402222 is an apocalyptic number.

206402222 is a deficient number, since it is larger than the sum of its proper divisors (139845778).

206402222 is a wasteful number, since it uses less digits than its factorization.

206402222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 206402222 is about 14366.7053286409. The cubic root of 206402222 is about 590.9781934478.

Adding to 206402222 its reverse (222204602), we get a palindrome (428606824).

The spelling of 206402222 in words is "two hundred six million, four hundred two thousand, two hundred twenty-two".