2226041621 has 4 divisors (see below), whose sum is σ = 2263771200. Its totient is φ = 2188312044.

The previous prime is 2226041593. The next prime is 2226041627. The reversal of 2226041621 is 1261406222.

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 a de Polignac number, because none of the positive numbers 2^k-2226041621 is a prime.

It is a super-2 number, since 2×2226041621² = 9910522596848615282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2226041627) 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, 18864701 + ... + 18864818.

It is an arithmetic number, because the mean of its divisors is an integer number (565942800).

Almost surely, 2^2226041621 is an apocalyptic number.

It is an amenable number.

2226041621 is a deficient number, since it is larger than the sum of its proper divisors (37729579).

2226041621 is an equidigital number, since it uses as much as digits as its factorization.

2226041621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37729578.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 2226041621 is about 47180.9455288891. The cubic root of 2226041621 is about 1305.7030745123.

Adding to 2226041621 its reverse (1261406222), we get a palindrome (3487447843).

The spelling of 2226041621 in words is "two billion, two hundred twenty-six million, forty-one thousand, six hundred twenty-one".