11221102111001 has 4 divisors (see below), whose sum is σ = 11332202132004. Its totient is φ = 11110002090000.

The previous prime is 11221102110973. The next prime is 11221102111019. The reversal of 11221102111001 is 10011120112211.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10885512462400 + 335589648601 = 3299320^2 + 579301^2 .

It is a cyclic number.

It is not a de Polignac number, because 11221102111001 - 2⁶ = 11221102110937 is a prime.

It is a super-2 number, since 2×11221102111001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11221102111031) 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, 55550010350 + ... + 55550010551.

It is an arithmetic number, because the mean of its divisors is an integer number (2833050533001).

Almost surely, 2^{11221102111001} is an apocalyptic number.

It is an amenable number.

11221102111001 is a deficient number, since it is larger than the sum of its proper divisors (111100021003).

11221102111001 is a wasteful number, since it uses less digits than its factorization.

11221102111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111100021002.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11221102111001 its reverse (10011120112211), we get a palindrome (21232222223212).

The spelling of 11221102111001 in words is "eleven trillion, two hundred twenty-one billion, one hundred two million, one hundred eleven thousand, one".