11220022001021 has 4 divisors (see below), whose sum is σ = 11220032256672. Its totient is φ = 11220011745372.

The previous prime is 11220022001017. The next prime is 11220022001051. The reversal of 11220022001021 is 12010022002211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11220022001021 - 2² = 11220022001017 is a prime.

It is a super-3 number, since 3×11220022001021³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11220022000987 and 11220022001005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220022001051) 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, 3259985 + ... + 5750438.

It is an arithmetic number, because the mean of its divisors is an integer number (2805008064168).

Almost surely, 2^{11220022001021} is an apocalyptic number.

It is an amenable number.

11220022001021 is a deficient number, since it is larger than the sum of its proper divisors (10255651).

11220022001021 is an equidigital number, since it uses as much as digits as its factorization.

11220022001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10255650.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11220022001021 its reverse (12010022002211), we get a palindrome (23230044003232).

The spelling of 11220022001021 in words is "eleven trillion, two hundred twenty billion, twenty-two million, one thousand, twenty-one".