1104420021 has 16 divisors (see below), whose sum is σ = 1531094400. Its totient is φ = 707271488.

The previous prime is 1104420019. The next prime is 1104420047. The reversal of 1104420021 is 1200244011.

It is not a de Polignac number, because 1104420021 - 2¹ = 1104420019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1104420001) 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, 15081 + ... + 49358.

It is an arithmetic number, because the mean of its divisors is an integer number (95693400).

Almost surely, 2^1104420021 is an apocalyptic number.

It is an amenable number.

1104420021 is a deficient number, since it is larger than the sum of its proper divisors (426674379).

1104420021 is a wasteful number, since it uses less digits than its factorization.

1104420021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64668.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1104420021 is about 33232.8154239150. The cubic root of 1104420021 is about 1033.6609039754.

Adding to 1104420021 its reverse (1200244011), we get a palindrome (2304664032).

The spelling of 1104420021 in words is "one billion, one hundred four million, four hundred twenty thousand, twenty-one".