11220111032321 has 32 divisors (see below), whose sum is σ = 12123090374400. Its totient is φ = 10344761589760.

The previous prime is 11220111032293. The next prime is 11220111032353. The reversal of 11220111032321 is 12323011102211.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11220111032321 is a prime.

It is a super-2 number, since 2×11220111032321² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11220111032293 and 11220111032302.

It is not an unprimeable number, because it can be changed into a prime (11220111032021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3056416316 + ... + 3056419986.

It is an arithmetic number, because the mean of its divisors is an integer number (378846574200).

Almost surely, 2^{11220111032321} is an apocalyptic number.

It is an amenable number.

11220111032321 is a deficient number, since it is larger than the sum of its proper divisors (902979342079).

11220111032321 is a wasteful number, since it uses less digits than its factorization.

11220111032321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8089.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 11220111032321 its reverse (12323011102211), we get a palindrome (23543122134532).

The spelling of 11220111032321 in words is "eleven trillion, two hundred twenty billion, one hundred eleven million, thirty-two thousand, three hundred twenty-one".