1223203112206 has 4 divisors (see below), whose sum is σ = 1834804668312. Its totient is φ = 611601556102.

The previous prime is 1223203112107. The next prime is 1223203112237. The reversal of 1223203112206 is 6022113023221.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305800778050 + ... + 305800778053.

It is an arithmetic number, because the mean of its divisors is an integer number (458701167078).

Almost surely, 2^{1223203112206} is an apocalyptic number.

1223203112206 is a deficient number, since it is larger than the sum of its proper divisors (611601556106).

1223203112206 is an equidigital number, since it uses as much as digits as its factorization.

1223203112206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611601556105.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1223203112206 its reverse (6022113023221), we get a palindrome (7245316135427).

The spelling of 1223203112206 in words is "one trillion, two hundred twenty-three billion, two hundred three million, one hundred twelve thousand, two hundred six".