2226221261 has 8 divisors (see below), whose sum is σ = 2464853664. Its totient is φ = 1993630320.

The previous prime is 2226221243. The next prime is 2226221293. The reversal of 2226221261 is 1621226222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2226221261 - 2²² = 2222026957 is a prime.

It is a super-2 number, since 2×2226221261² = 9912122205856860242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2226221261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2226221561) 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, 1509590 + ... + 1511063.

It is an arithmetic number, because the mean of its divisors is an integer number (308106708).

Almost surely, 2^2226221261 is an apocalyptic number.

It is an amenable number.

2226221261 is a deficient number, since it is larger than the sum of its proper divisors (238632403).

2226221261 is a wasteful number, since it uses less digits than its factorization.

2226221261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3020731.

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

The square root of 2226221261 is about 47182.8492251157. The cubic root of 2226221261 is about 1305.7381966755.

Adding to 2226221261 its reverse (1621226222), we get a palindrome (3847447483).

The spelling of 2226221261 in words is "two billion, two hundred twenty-six million, two hundred twenty-one thousand, two hundred sixty-one".