206221211115226 has 8 divisors (see below), whose sum is σ = 309354059600640. Its totient is φ = 103103191248348.

The previous prime is 206221211115193. The next prime is 206221211115263. The reversal of 206221211115226 is 622511112122602.

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

It is a super-2 number, since 2×206221211115226² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 206221211115191 and 206221211115200.

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, 3707119866 + ... + 3707175493.

It is an arithmetic number, because the mean of its divisors is an integer number (38669257450080).

Almost surely, 2^{206221211115226} is an apocalyptic number.

206221211115226 is a deficient number, since it is larger than the sum of its proper divisors (103132848485414).

206221211115226 is a wasteful number, since it uses less digits than its factorization.

206221211115226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7414309268.

The product of its (nonzero) digits is 11520, while the sum is 34.

Adding to 206221211115226 its reverse (622511112122602), we get a palindrome (828732323237828).

The spelling of 206221211115226 in words is "two hundred six trillion, two hundred twenty-one billion, two hundred eleven million, one hundred fifteen thousand, two hundred twenty-six".