22011249 has 8 divisors (see below), whose sum is σ = 31605952. Its totient is φ = 13545360.

The previous prime is 22011247. The next prime is 22011293. The reversal of 22011249 is 94211022.

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

It is not a de Polignac number, because 22011249 - 2¹ = 22011247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22011247) 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, 282157 + ... + 282234.

It is an arithmetic number, because the mean of its divisors is an integer number (3950744).

Almost surely, 2^22011249 is an apocalyptic number.

It is an amenable number.

22011249 is a deficient number, since it is larger than the sum of its proper divisors (9594703).

22011249 is a wasteful number, since it uses less digits than its factorization.

22011249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564407.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 22011249 is about 4691.6147540053. The cubic root of 22011249 is about 280.2516827166.

The spelling of 22011249 in words is "twenty-two million, eleven thousand, two hundred forty-nine".