111204460021 has 8 divisors (see below), whose sum is σ = 111914060544. Its totient is φ = 110497116720.

The previous prime is 111204460009. The next prime is 111204460043. The reversal of 111204460021 is 120064402111.

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 111204460021 - 2¹³ = 111204451829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111204459974 and 111204460001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111204460001) 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, 465405 + ... + 662578.

It is an arithmetic number, because the mean of its divisors is an integer number (13989257568).

Almost surely, 2^111204460021 is an apocalyptic number.

It is an amenable number.

111204460021 is a deficient number, since it is larger than the sum of its proper divisors (709600523).

111204460021 is a wasteful number, since it uses less digits than its factorization.

111204460021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128611.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 111204460021 its reverse (120064402111), we get a palindrome (231268862132).

The spelling of 111204460021 in words is "one hundred eleven billion, two hundred four million, four hundred sixty thousand, twenty-one".