2241122421 has 4 divisors (see below), whose sum is σ = 2988163232. Its totient is φ = 1494081612.

The previous prime is 2241122417. The next prime is 2241122473. The reversal of 2241122421 is 1242211422.

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 not a de Polignac number, because 2241122421 - 2² = 2241122417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2241122491) 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, 373520401 + ... + 373520406.

It is an arithmetic number, because the mean of its divisors is an integer number (747040808).

Almost surely, 2^2241122421 is an apocalyptic number.

It is an amenable number.

2241122421 is a deficient number, since it is larger than the sum of its proper divisors (747040811).

2241122421 is an equidigital number, since it uses as much as digits as its factorization.

2241122421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747040810.

The product of its digits is 512, while the sum is 21.

The square root of 2241122421 is about 47340.4945157948. The cubic root of 2241122421 is about 1308.6450300545.

Adding to 2241122421 its reverse (1242211422), we get a palindrome (3483333843).

The spelling of 2241122421 in words is "two billion, two hundred forty-one million, one hundred twenty-two thousand, four hundred twenty-one".