27221106 has 32 divisors (see below), whose sum is σ = 59727168. Its totient is φ = 8202240.

The previous prime is 27221087. The next prime is 27221113. The reversal of 27221106 is 60112272.

It is a super-2 number, since 2×27221106² = 1481977223726472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11670 + ... + 13806.

It is an arithmetic number, because the mean of its divisors is an integer number (1866474).

Almost surely, 2^27221106 is an apocalyptic number.

27221106 is an abundant number, since it is smaller than the sum of its proper divisors (32506062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27221106 is a wasteful number, since it uses less digits than its factorization.

27221106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 27221106 is about 5217.3849771701. The cubic root of 27221106 is about 300.8166858411.

Adding to 27221106 its reverse (60112272), we get a palindrome (87333378).

It can be divided in two parts, 2722 and 1106, that added together give a triangular number (3828 = T₈₇).

The spelling of 27221106 in words is "twenty-seven million, two hundred twenty-one thousand, one hundred six".