21227096 has 32 divisors (see below), whose sum is σ = 43837200. Its totient is φ = 9555840.

The previous prime is 21227081. The next prime is 21227099. The reversal of 21227096 is 69072212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21227099) 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, 8486 + ... + 10698.

Almost surely, 2^21227096 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21227096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21918600).

21227096 is an abundant number, since it is smaller than the sum of its proper divisors (22610104).

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

21227096 is a wasteful number, since it uses less digits than its factorization.

21227096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339 (or 2335 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 21227096 is about 4607.2872712693. The cubic root of 21227096 is about 276.8833630766.

The spelling of 21227096 in words is "twenty-one million, two hundred twenty-seven thousand, ninety-six".