221102010011 has 4 divisors (see below), whose sum is σ = 221231386800. Its totient is φ = 220972633224.

The previous prime is 221102010001. The next prime is 221102010049. The reversal of 221102010011 is 110010201122.

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 221102010011 - 2¹⁰ = 221102008987 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221102009974 and 221102010001.

It is not an unprimeable number, because it can be changed into a prime (221102010001) 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, 64685831 + ... + 64689248.

It is an arithmetic number, because the mean of its divisors is an integer number (55307846700).

Almost surely, 2^221102010011 is an apocalyptic number.

221102010011 is a deficient number, since it is larger than the sum of its proper divisors (129376789).

221102010011 is a wasteful number, since it uses less digits than its factorization.

221102010011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129376788.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 221102010011 its reverse (110010201122), we get a palindrome (331112211133).

The spelling of 221102010011 in words is "two hundred twenty-one billion, one hundred two million, ten thousand, eleven".