22266261 has 12 divisors (see below), whose sum is σ = 32205888. Its totient is φ = 14824104.

The previous prime is 22266259. The next prime is 22266313. The reversal of 22266261 is 16266222.

It is not a de Polignac number, because 22266261 - 2¹ = 22266259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22266961) 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, 8806 + ... + 11048.

It is an arithmetic number, because the mean of its divisors is an integer number (2683824).

Almost surely, 2^22266261 is an apocalyptic number.

It is an amenable number.

22266261 is a deficient number, since it is larger than the sum of its proper divisors (9939627).

22266261 is a wasteful number, since it uses less digits than its factorization.

22266261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3352 (or 3349 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 22266261 is about 4718.7139137693. The cubic root of 22266261 is about 281.3298179383.

The spelling of 22266261 in words is "twenty-two million, two hundred sixty-six thousand, two hundred sixty-one".