2240011021 has 4 divisors (see below), whose sum is σ = 2271560544. Its totient is φ = 2208461500.

The previous prime is 2240011013. The next prime is 2240011031. The reversal of 2240011021 is 1201100422.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2240011021 - 2³ = 2240011013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2240010992 and 2240011010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240011031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15774655 + ... + 15774796.

It is an arithmetic number, because the mean of its divisors is an integer number (567890136).

Almost surely, 2^2240011021 is an apocalyptic number.

It is an amenable number.

2240011021 is a deficient number, since it is larger than the sum of its proper divisors (31549523).

2240011021 is an equidigital number, since it uses as much as digits as its factorization.

2240011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31549522.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2240011021 is about 47328.7546952167. The cubic root of 2240011021 is about 1308.4286699304.

Adding to 2240011021 its reverse (1201100422), we get a palindrome (3441111443).

The spelling of 2240011021 in words is "two billion, two hundred forty million, eleven thousand, twenty-one".