22228811 has 16 divisors (see below), whose sum is σ = 24893568. Its totient is φ = 19680000.

The previous prime is 22228793. The next prime is 22228813. The reversal of 22228811 is 11882222.

It is a cyclic number.

It is not a de Polignac number, because 22228811 - 2⁶ = 22228747 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (22228813) 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, 88436 + ... + 88686.

It is an arithmetic number, because the mean of its divisors is an integer number (1555848).

Almost surely, 2^22228811 is an apocalyptic number.

22228811 is a deficient number, since it is larger than the sum of its proper divisors (2664757).

22228811 is a wasteful number, since it uses less digits than its factorization.

22228811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442.

The product of its digits is 1024, while the sum is 26.

The square root of 22228811 is about 4714.7440015339. The cubic root of 22228811 is about 281.1720049736.

The spelling of 22228811 in words is "twenty-two million, two hundred twenty-eight thousand, eight hundred eleven".