1111221030321 has 12 divisors (see below), whose sum is σ = 1615726827520. Its totient is φ = 735907966200.

The previous prime is 1111221030313. The next prime is 1111221030407. The reversal of 1111221030321 is 1230301221111.

It is not a de Polignac number, because 1111221030321 - 2³ = 1111221030313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111221030294 and 1111221030303.

It is not an unprimeable number, because it can be changed into a prime (1111221030301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 408836401 + ... + 408839118.

Almost surely, 2^{1111221030321} is an apocalyptic number.

It is an amenable number.

1111221030321 is a deficient number, since it is larger than the sum of its proper divisors (504505797199).

1111221030321 is a wasteful number, since it uses less digits than its factorization.

1111221030321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817675676 (or 817675673 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1111221030321 its reverse (1230301221111), we get a palindrome (2341522251432).

The spelling of 1111221030321 in words is "one trillion, one hundred eleven billion, two hundred twenty-one million, thirty thousand, three hundred twenty-one".