21883122 has 32 divisors (see below), whose sum is σ = 49239360. Its totient is φ = 7292916.

The previous prime is 21883111. The next prime is 21883129. The reversal of 21883122 is 22138812.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (21883129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1873 + ... + 6875.

It is an arithmetic number, because the mean of its divisors is an integer number (1538730).

Almost surely, 2^21883122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21883122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24619680).

21883122 is an abundant number, since it is smaller than the sum of its proper divisors (27356238).

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

21883122 is an frugal number, since it uses more digits than its factorization.

21883122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5026 (or 5008 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 21883122 is about 4677.9399312090. The cubic root of 21883122 is about 279.7068445386.

The spelling of 21883122 in words is "twenty-one million, eight hundred eighty-three thousand, one hundred twenty-two".