1011312220208 has 10 divisors (see below), whose sum is σ = 1959417426684. Its totient is φ = 505656110096.

The previous prime is 1011312220201. The next prime is 1011312220229. The reversal of 1011312220208 is 8020222131101.

It is not an unprimeable number, because it can be changed into a prime (1011312220201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31603506866 + ... + 31603506897.

Almost surely, 2^{1011312220208} is an apocalyptic number.

It is an amenable number.

1011312220208 is a deficient number, since it is larger than the sum of its proper divisors (948105206476).

1011312220208 is an equidigital number, since it uses as much as digits as its factorization.

1011312220208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63207013771 (or 63207013765 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 1011312220208 its reverse (8020222131101), we get a palindrome (9031534351309).

The spelling of 1011312220208 in words is "one trillion, eleven billion, three hundred twelve million, two hundred twenty thousand, two hundred eight".