11012221099999 has 4 divisors (see below), whose sum is σ = 12585395542864. Its totient is φ = 9439046657136.

The previous prime is 11012221099991. The next prime is 11012221100011. The reversal of 11012221099999 is 99999012221011.

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

It is a cyclic number.

It is not a de Polignac number, because 11012221099999 - 2³ = 11012221099991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012221099991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 786587221422 + ... + 786587221435.

It is an arithmetic number, because the mean of its divisors is an integer number (3146348885716).

Almost surely, 2^{11012221099999} is an apocalyptic number.

11012221099999 is a deficient number, since it is larger than the sum of its proper divisors (1573174442865).

11012221099999 is an equidigital number, since it uses as much as digits as its factorization.

11012221099999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573174442864.

The product of its (nonzero) digits is 472392, while the sum is 55.

The spelling of 11012221099999 in words is "eleven trillion, twelve billion, two hundred twenty-one million, ninety-nine thousand, nine hundred ninety-nine".