11220300123221 has 16 divisors (see below), whose sum is σ = 12868201981824. Its totient is φ = 9583685489664.

The previous prime is 11220300123217. The next prime is 11220300123251. The reversal of 11220300123221 is 12232100302211.

It is a cyclic number.

It is not a de Polignac number, because 11220300123221 - 2² = 11220300123217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11220300123193 and 11220300123202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220300123211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2133545 + ... + 5195441.

It is an arithmetic number, because the mean of its divisors is an integer number (804262623864).

Almost surely, 2^{11220300123221} is an apocalyptic number.

It is an amenable number.

11220300123221 is a deficient number, since it is larger than the sum of its proper divisors (1647901858603).

11220300123221 is a wasteful number, since it uses less digits than its factorization.

11220300123221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3063740.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11220300123221 its reverse (12232100302211), we get a palindrome (23452400425432).

The spelling of 11220300123221 in words is "eleven trillion, two hundred twenty billion, three hundred million, one hundred twenty-three thousand, two hundred twenty-one".