11000221221011 has 4 divisors (see below), whose sum is σ = 12000241332024. Its totient is φ = 10000201110000.

The previous prime is 11000221220927. The next prime is 11000221221053. The reversal of 11000221221011 is 11012212200011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11000221221011 is a prime.

It is a super-2 number, since 2×11000221221011² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11000221221091) 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, 500010055490 + ... + 500010055511.

It is an arithmetic number, because the mean of its divisors is an integer number (3000060333006).

Almost surely, 2^{11000221221011} is an apocalyptic number.

11000221221011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11000221221011 is a deficient number, since it is larger than the sum of its proper divisors (1000020111013).

11000221221011 is a wasteful number, since it uses less digits than its factorization.

11000221221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000020111012.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11000221221011 its reverse (11012212200011), we get a palindrome (22012433421022).

The spelling of 11000221221011 in words is "eleven trillion, two hundred twenty-one million, two hundred twenty-one thousand, eleven".