20102206 has 8 divisors (see below), whose sum is σ = 30188880. Its totient is φ = 10039248.

The previous prime is 20102153. The next prime is 20102213. The reversal of 20102206 is 60220102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3631 + ... + 7306.

It is an arithmetic number, because the mean of its divisors is an integer number (3773610).

Almost surely, 2^20102206 is an apocalyptic number.

20102206 is a deficient number, since it is larger than the sum of its proper divisors (10086674).

20102206 is a wasteful number, since it uses less digits than its factorization.

20102206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11858.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 20102206 is about 4483.5483715468. The cubic root of 20102206 is about 271.9033591944.

Adding to 20102206 its reverse (60220102), we get a palindrome (80322308).

The spelling of 20102206 in words is "twenty million, one hundred two thousand, two hundred six".