22148811 has 12 divisors (see below), whose sum is σ = 32304688. Its totient is φ = 14621904.

The previous prime is 22148809. The next prime is 22148821. The reversal of 22148811 is 11884122.

It is not a de Polignac number, because 22148811 - 2¹ = 22148809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22148801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11020 + ... + 12873.

Almost surely, 2^22148811 is an apocalyptic number.

22148811 is a deficient number, since it is larger than the sum of its proper divisors (10155877).

22148811 is a wasteful number, since it uses less digits than its factorization.

22148811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24002 (or 23999 counting only the distinct ones).

The product of its digits is 1024, while the sum is 27.

The square root of 22148811 is about 4706.2523306767. The cubic root of 22148811 is about 280.8342931186.

It can be divided in two parts, 2214 and 8811, that added together give a square (11025 = 105²).

The spelling of 22148811 in words is "twenty-two million, one hundred forty-eight thousand, eight hundred eleven".