11222001110021 has 8 divisors (see below), whose sum is σ = 12209821986264. Its totient is φ = 10251978808320.

The previous prime is 11222001110003. The next prime is 11222001110039. The reversal of 11222001110021 is 12001110022211.

It is an interprime number because it is at equal distance from previous prime (11222001110003) and next prime (11222001110039).

It can be written as a sum of positive squares in 4 ways, for example, as 195815985121 + 11026185124900 = 442511^2 + 3320570^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11222001110021 - 2³⁰ = 11220927368197 is a prime.

It is a super-2 number, since 2×11222001110021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11222001109978 and 11222001110005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222001110071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4449642320 + ... + 4449644841.

It is an arithmetic number, because the mean of its divisors is an integer number (1526227748283).

Almost surely, 2^{11222001110021} is an apocalyptic number.

It is an amenable number.

11222001110021 is a deficient number, since it is larger than the sum of its proper divisors (987820876243).

11222001110021 is an equidigital number, since it uses as much as digits as its factorization.

11222001110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8899287271.

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

Adding to 11222001110021 its reverse (12001110022211), we get a palindrome (23223111132232).

The spelling of 11222001110021 in words is "eleven trillion, two hundred twenty-two billion, one million, one hundred ten thousand, twenty-one".